I would second the advice wet dog gave you, don’t give up on the dream but for sure do not buy a boat and permit right off the bat. There are so many things you need to learn navigation really being a minor issue if you ask me. You need to learn how the salmon behave, how tides and weather affect that flow, how to fix your power roller with improvised pieces of warmed rubber, how to mend the huge whale holes, how to pull up to a tender in 80 knot winds and not kill anyone/damage fiberglass. You really want to see all this from the perspective of the deckhand, who for better and for worse really doesn’t have much into a fishing operation but their time and gear costs. You do not want to sink your savings or borrow against the equity of your home to finance an already risky business venture. I have many a friend who remarks on their successful winter jobs, " I run this or that enterprise so I can afford to fish " . Don’t find out how hard it is wearing the skipper hat.
Having said all this stuff you don’t want to hear I’ll go ahead and assume you’ll ignore every word. In that case I would buy a 34 foot Branko boat with a chiller unit and a recently rebuilt engine. I would buy or lease my permit out in False Pass ( aka Area M, Port Moller way beyond Bristol Bay ) or the Prince William Sound. These areas have lots of fishing time typically and there is time to make mistakes. Assuming you know the ins and outs of plumbing, electrical, diesel motors and reefer units and also assuming you hire an experienced man ( 10 or more years ) you could just go out and learn by doing and would eventually get along. You may go bust in the process but you’ll have done it your way.
I hope you go out and show us all up truthfully.