What type of boat
You really need to start figuring out more than just how many bunks. You need to come to terms with what type of use you expect to get and where you expect to be able to go. What you already know how to do and wha you''ll need to do to learn the rest.
Picking the actual boat I think is the easy part. Figuring out all the questions and working through the solutions along with the money really are the harder parts. For all I said the money really is the important part. You don''t want to put more in than you can afford or you won''t be able to go any place.
To be honest a long distance 50 ft boat for $50K is going to be hard to come by in terms of a boat that is ready to go. Getting into the details of what you want to do and how you expect to do it will help shape your decision a lot more.
There is the boat and there is the stuff and there is the crew. It seems obvious but they all need some planning in many areas.
Think about a bigger picture than the number of bunks and work backwards.