the crew I would reccomend for UK is 6 engies (7 is good as well), 4 reps, 1 scout, 2 gunners and BO

Good thing that you use your reload gunners as main gunners even though they are probably quite inaccurate for the time being - if you use your acc gunners as main gunners you'll find that they will reload too slowly.

The main point would be to class your 2nd engies to 1st (they should have been classed at level 52 or 53, can't remember exactly). You should also get all engies on the same level (rotate them on your Dunk), as lower level engies drag down the performance of higher level ones.

Apart from that, your existing crew is fine (could do with boosting and more experts/vets, but you'll do that later with items won from events). What you do need to anticipate is ships with more support slots (BB4 has 13 sailor slots, of which 8 supports, BB5 & BB6 14/9). Level up one or two more engies and two or three more repairs (4 sailors in total).

You are missing 2 sailors to make your crew a full crew. I would recommend 1 engi and 1 repairer. You were right to drop the restorer, on a BB crew they eventually amount to nothing more than poor repairers.

Your BO and Scout look fine, you can't really go wrong with them. Don't neglect your scout when you reach the Nelson just because the Nelson cannot launch Recon planes.

Your main gunners (the Reload ones) look like they could really benefit from a lot more experts, even at 120 you will need more than you have at the moment to reach both caps. But there's no need to go overkill at low levels either. If you filled them with experts though, you would probably notice quite a difference. Or your delayed Acc gunners instead if they are your future main gunners.

As for your other gunners (the delayed Acc ones), even for UK I generally recommend you class any main gunners Reload. I'm sure you can see that by delaying them as gunners you are preserving their ability to grow their Accuracy and Reload at an equal rate, however the amount of Accuracy and Reload you need is not equal, infact you need quite a lot more Reload than Accuracy (which is why the Accuracy promotion is a poor choice, due to the penality to Reload growth). You also lose out on the increased growth of manpower which comes with higher level promotions (and more men means more experts/vets, thus more ability for less weight). However, delaying them is not harming them either, boosted elites will comfortably cap both abilities eventually, but at their present rate when they do cap accuracy they will be only half way towards the reload cap.

Your level 73 and 74 Engies looks fine.

Your level 59 Engie appears to have missed his promotion to 1st Engineer by 6 levels (it's available at lvl 53).

Your level 58 Elite engie looks like he missed his promotion to 1st Engineer.

Your level 55 Engie appears to have missed his 1st Engineer promotion too.

These missed promotions just add to the repair I suppose :)

Your level 74 Repairer is fine.

Overall I would say you have one or two minor flaws but nothing to be worried over in the long term. Bear in mind as well however, there is an experience penalty for sailors too high and too low for their ships. You can see the details here (courtesy of Trainworld.us), but level ~60 supports on a Nelson will receive a -51% exp penalty for the difference in level (the penalty for sailors lower than the ship they are on is quite harsh). I recommend you stick with the Dunkerque for a while longer.

An Engi and Repairer - got it. I think I can manage that. It'll give me an excuse to go visit Blitz again as well.

As far as the secondary Accuracy Gunners - My plan was to class them as reload at 80. Should I just class them as reload now? Will I hit the Accuracy cap? I made some mistakes early on by trying to convert experts into Vets - I lost a ton of Experts so I figure for now I'm going to wait until I get a solid base of Experts before I start to gamble them off. 

A lot of these decisions were made by me ages ago before the accounts got de-activated so I don't quite remember why - though I suspect it was from some forum conversations and links I had stumbled upon in the past. 

Sorry - I should be more specific. The "Accuracy" sailors aren't actually classed as Accuracy - they are just the fancy ones you can get from the Olive Store.

If I were you, I would class them reload now, they will continue to grow in accuracy but more slowly. The accuracy cap is quite easy to reach, especially since the cap is based on a gunners level. The cap (and thus, the maximum your gunners can contribute with accuracy) increases each time they level, once you reach that cap for the level they are you're pretty much guaranteed to continue being capped again every time they level up after that. A lot of people try to aim for the lvl 120 cap early on, when most gunners will reach the accuracy cap just by trying to get enough experts/vets to reach the reload cap.

I take it you are going with normal gunner classes for your AA to use the 5.25" RP10 Ls?

I think I figured out what I ended up with...

My "main" current gunners appear to be the Premium Reload Sailors that have been Boosted and classed as Reload Gunners very early on (perhaps right on time). The accuracy is getting better - albeit very slowly.

The other gunners are the Accuracy version of the same thing. I just classed them at level 60 to Huge Reload Gunners - Either way at this point they will be more accurate than what I have.

All of my Engineers have been classed up appropriately. I'll have to start a new sailor or two and try my way through Blitz again. I've got two lower level BO's to work with.