I'd be willing to talk to you about it depending on when you want to make the trip. No, I'm not a mechanic, but I've owned thirty some odd gasoline powered boats and have logged thousands of hours and did my 100 ton master a while back. I’ve got all the charts both paper and electronic. I don't need $350 per day to make it worth my while either as I‘m bored and would enjoy the trip. I would suggest having a mechanic look it over in addition to a few hours of local running before heading out. If it will run for 2-3 hours, it will most likely run long enough to get it home. It's not as though you're heading across the Pacific, and you have two running engines. Besides, it's downstream most of the way. Get a small dingy with an outboard, and you'll have things covered in the event you have problems. That and a big ass anchor. Wouldn’t hurt to sign up with SeaTow or TowBoat US before you head out either.
Check around and see who has ethanol-free fuel. In these parts, it's not a problem. Just chart your course and know where you can buy fuel. No big deal to confirm availability ahead of time. As for ethanol, I'm assuming if you burn it out about as fast as you put it in, it probably wouldn't be an issue anyway. You can ask the x-spurts about that one. If the boat has been laid up that long, it's not going to have ethanol in the tanks now, so it shouldn't be an issue. I would suggest having the tanks pumped out and filled with fresh fuel before running it at all.