OP: After reading your post I scanned Yacht World and found this:
1972 Bristol 35
Port Hadlock, Washington
Looks like it might be a fine ship, checks off some of your boxes and there might be some wiggle room in price
due to its age, but remember you require a survey
to assist you in deciding your final choice whatever that might be.
My opinion is that the vast majority of forum members here will advise you to go for your dream. Pursuing your dream should start the day you realize it, so start looking at more boats, locations etc.
The economics of living aboard
is to a large degree is what you make it. Of course it can be expensive, but this forum is full of threads/posts on how to enjoy living aboard
with minimal expenditures. It is all about the choices you make and THAT is one of the great things about living aboard, we get to choose. Can't afford lithium batteries
? Buy golf cart batteries! Don't like your neighbor? Move! Etc etc. But if you HAVE to have the latest "do-hickey", be realistic in the expensive, long term implications of this type of decision. Finally, as you seem to be a capable person, the value of personal sweat equity should not be underestimated. It can have a very large impact on the economics of your situation. This forum is full of ideas to help.
* I have no connection whatsoever to the boat
referred to above. It was added just to give a place for the op to possibly start from.