RE: 76.5
For lack of a hatch you'de have to cut the exsisting interior structure out,modify it to your liking,use it for a plug.The sky is the limit and most of its rite there already done.Sounds like there not a big market for it though,...but if the rite guy did the mods to the hull hatch it could be a worthy choice and marketable as a finished kit decked out in scale!
Oh man matt a few RCMK s520's in that baby,....