I took my car to a Rod shop recently to get their thoughts on some welding I wanted done... the owner of the shop offered me his unsolicited opinion that I should simply walk away from my car, as it would never be worth a fraction of what a full resto would cost. "It's not even a Camaro" he said.
I think it's been discussed before on this board, and unfortunately, you may be living it right now: FGF's are undervalued, at least in the opinion of enthusiasts around here.