Prices do seem to be going up on foxes. The cheapest one I've seen advertised within 100 miles of me (besides my 91 GT $3500) is $4200 and that was an 88 with about 190k miles, don't remember anything else about it.
T70 turbo
24x12x3 Intercooler
BOV
tial 38 mm wastegate
B&G hotside and downpipe (homemade coldside)
Ford racing 42 lb injectors
PRO M ATI mass air meter
MSD 6AL
Anderson Ford PMS
ford racing upper control arms
battery reloction kit
lakewood drag shocks
maximum motorsoprts rear lower control arms
maximum motor sport TQ arm (i think)
nitto 555R's
Finished restoring the hatch/rear section. Just completed my goal of getting every option the car came with working...lights, chimes, etc. Continue to add to the bay and finish up this month with a few dyno pulls. Oh yeah...GET SOME MILES ON IT.