Re: buyer's broker payment questions
I think you can go with someone like Robert Perry as he offers a consulting service. He may not go out and find the actual boat, but he should be able to whittle down the list anyway. It is really more just honestly looking at your intentions on what you are doing with the boat, and finding boats that fit that need. If you are going to be day sailing in lighter winds, (say Chesapeake Bay for example) then a heavy cruiser is not going to be a good match.
You really should be able to narrow it down quite easily even by posting the list here and what your plans are. No one here has a bone in the fight, but remember the advice may be worth what you paid for it.
As far as fire damaged boat, that would not be a deal killer but even if fixed properly it would still be worth perhaps 60% of what a good example was worth.
Did you wind up with a boat?