Suggestion on the floor hatches...here's what I did w/mine back in 1999...ZERO maintenance and nearly bullet-proof in every way...3/4" Starboard...under the cuddy, I found a 120 qt cooler (used primarily for fish-box) that fit like a glove, then cut a piece of Starboard to fit remaining opening...the rear hatch lid is hinged in the center to allow access to the two trolling motor batteries in back of the hatch and the onboard charger that keeps them hot in the front...
Just a suggestion, of course, but it has worked well for a long time...one heads-up...if you go this route, cut small enough to allow for HOT weather E X P A N S I O N...Starboard does expand in hot weather...apologies for dirty boat...at the time it was in the yard under some trees...now it's in a shed full time and looks much...the same...