It occurred to me the other day that I have a metric ton of aftermarket stuff lurking in my stash, including a bunch of these:

...which I bought years ago and never used. They also happen to be shorter than the Pontos 20mm bases... That means I don't actually have to live with dramatically oversized oerlikons after all; swapping out the bases gives me a much better scale effect:


I only have enough to do half of them right now but those little oerlikons are still available and I
might be able to just stick with the kit bases on the maindeck without them looking weird. Plus, I checked the Pontos Missouri/Iowa detail sets and those kit's oerlikon bases are shorter than the Nelson kit so I've got extra there as well (although they are a somewhat different shape)
I also squeezed out Nelson's HACS units:

They were a nightmare as the main antennae piece wouldn't fold properly and the little triangle pieces break off after only a couple folds. It was almost a disaster but I somehow managed to get 'em bent properly and re-glue the triangle pieces back onto the unit. A little bit of paint and no one will ever know...

Did you paint those decks dark grey with brush after glueing everything together?