the clutch in my terminator started slipping. if i get into boost in anything over 2nd gear, it slips.

so now, two things need to happen:
1) i've got to finish rebuilding the spare t56 i bought because the trans is bad too ( i knew that when i bought it)
2) i've got to spend a bunch of money on a new clutch. the pedal effort on the current clutch makes the car a little unpleasant to drive and the only single disc clutches that might hold up will have the same "stand on it" clutch pedal.
anybody know of a good place to get a twin disc clutch cheap? this is going in a street car.