Only thing I've been able to find online, especially since I want to live aboard, is either Essex or Light Stream . . .or Good Sam.
I've been leaning towards Light Stream if I can keep my tastes reasonable. Unsecured, max 7 year loan, simple interest, no prepayment penalty.
Essex requires Documentation, prefered ships mortgage, closing costs. . .but you can stretch the years out to get more boat (not sure if that's good or bad, lol).
I think Good Sam is backed by Essex?
2 brokers I asked about financing trawlers said the weren't even sure. Told me it's mostly a cash deal since it's retirees who've sold their homes buying these things.
Just my 2 cents