Good luck to him in this market!! All that stuff is worth nothing to anyone but him.
When I look at boats i look at the boat, motor if newer, as most need to be re powered any way, and the trailer.
I will out fit it with stuff that i like any way, we all like what we like. Sounds like he has a ton invested like all of us, and is trying to recoup it.
I will say this I fished for 5 years on a boat just like it, and if i was going to get one i would get the offshore model as the deck is flat from front to back. That step up sucks and makes the fishing area kind of small.