That's kinda funny V.2...
When I saw the first part of your post and F & B Boatworks consideration, the first thing that came to mind is, "if you got that kind of money, may as well get a late model motor and not worry about range."
That F & B restoration was awesome but clearly pricey. But 10K to raise the floor - Come on, man...
I'd go back to plan A.
Good luck with the project.