It doesn't look impossible to me, but it would take the right person with the right skills to make it work. I would first assess the mold situation- maybe it can be cleaned up with a few days of elbow grease.
Then figure on someone putting in cylinder kits for you in both engines, maybe $10,000 even in the Bahamas. Then with propulsion ok and the boat habitable you could bring it back to the states. If you don't then I am pretty sure that all parts will be subject to Bahamian duties which are big. But you could launch it and live aboard while you dealt with everything else. That might not be a bad deal for someone- live in paradise while your rebuild your toy. To make this work, your really need to do most of the stuff yourself, otherwise labor will kill the deal.
First assume that every piece of electrical and electronics equipment is shot. That will probably take $20,000 in parts to fix and another $10,000 in Bahamian duties if done there. Replacement is much, much easier than new and I would believe that existing DC wiring would work ok, but interface cable such as chartplotter to the radar dome would have to be replaced.
There probably are a couple of dozen things to replace from bilge pumps to chartplotters, but I will bet a competent shade tree guy could do it in a month.
I would leave the gensets alone until I got back to the states. Maybe they can be made operational easily, maybe no.
Then you have a semi-functional boat but not a pretty one. Painting the topsides makes sense and that will cost maybe $10,000 if no fiberglass repair is involved. Probably needs new upholstery throughout, maybe $10,000 and a new bimini- $3,000.
So the foregoing adds up to about $60,000 plus a month or so of your own labor. Afterwards you have a $100,000+ boat.
I agree that the boat as it sits is almost worthless. But if I wanted to hang out in paradise for a month or two while I installed new electrical systems I might take it on. But ten years ago, not today.
David