Greg its worth what you can get for it. A collector is more likely to appreciate all the work and new parts put into it.
I would love to own your FT. Dont sell it!  

My FT plays sweet, and looks pretty decent. It cost me 2100, and I havent spent a cent on it, well apart from LEDs.
My Dr Who cost me 1950, it needs one button repaired on the mini PF (works intermittantly, gives error on start-up) but other than that is a good machine. Point is, that machines do not need to cost alot for them to be in decent/good playable nick.