Gabriel has about 114,000 gp of wealth in total if you bought it all at the listed costs, but 7,000 of that was spent on permanent effects in his "secret lair", which will probably never matter in the game, and 12,000 is spent on stuff purely for the party. Another 16,000 was for his Legendary Item, which is basically only there for the Cunning ability, and 15,000 is tied up in a Vestige Phylactery, which lets him swap a bound vestige out once per day, which is actually overpriced I think, since it only reproduces the feat Expel Vestige. So I don't think he's too far over what he should be, taking that stuff into consideration.
If someone really has a problem with it, I can get rid of some things. We can hopefully craft more stuff for other people once the game gets going also, assuming we get some money.