Hi Mike,
Actually, yes...at one point in the process (from what I've gotten out of Freidman's US Carrier book), right after the loss of Yorktown at Midway, the USN considered using the hulls of the last two Iowas (Kentucky and Illinois) which were appropriated in 1942 but not yet under construction. The thought was that a heavily armored battleship hull would withstand aerial torpedo attacks, and of course, sub attacks.
Preliminary drawings were made (which are in the National Archives) but it was determined that the cost of re-engineering an Iowa Class (not counting the construction) would cost as much as building an Essex, so the plan was scrapped. I have a plan and profile view (basically just a sketch), so that's my basis for the build. Everything else, radar suite, AA suite, airwing, would all be pure speculation, but obviously, I'll be using period fittings, most like SK-2 radar, Mk2 Bofor, 20mm Oerlikon (twins), and probably the usual suite of Corsairs, TBFs, SB2Cs, and Hellcats. It's a long-range project, maybe over the summer.
Jeff