That seems kinda high to me. When I was going to have the spec clutch I bought installed the Ford stealership here quoted me $800 for the swap. Clutch cost me $340 I think (was a Stage II) so that's quite a bit cheaper. How much are they charging you for the clutch and how much is labor? If it's more than $300 or so you might be better off getting with one of the Spec vendors on here (SVTCuervo or FlechAutoSports IIRC sell them) and getting a Spec Stage I.

BTW I did find a local shop that quoted me $700 for labor. The Ford manual lists a clutch swap at I believe 10 hours.

Formerly known as Sneaku I MISS MY BABY!!! '00 Blk CSVT #1087/2150 built 12/23/99