This is a 2x3x16" 35,000 ton BB I did for one of my AU's. I would be happy for you to use it as a start point for the BB you are looking to produce. Remove the aft centreline 5.1/130mm DP guns and leave the broadside turrets. Give you plenty of space aft for your heli deck. It is a 30 knot ship on 140,000shp. The AA are twin and quad 40mm.
Ive started to use your drawing, I will post something when I have created work that is more substantial. I knew in theory I was able to do this, but didn't sit down and actually try to do it. I moved over from 300 ppi to 72 ppi, set stroke width to .25ppi and now when I rasterize it typically comes out to the one pixel thickness standard in shipbucket. I feel like I did this before but then forgot I did it. ><
So yeah, getting adobe illustrators CAD like features to work for making shipbucket drawings would be really handy.