2200.0 clutch jobs are for thos epeople who are "unaware" of their Mechanic. DIY cluch replacment is "plausible" with decent tools, good general knowledge of how stuff works, a FOrd CD Rom (PM TODRAS), a buddy, and a weekend. The cost of a good clutch will run you just under 300.00 (Spec 1 Clutch, as Rawburt said). Napa can re-surface the flywheel for about 35.00 and a new throw out bearing is 75.00. Labor is the killer, depending on where you go.
How long do they last? Depends, really. Stalling out a car does little to the clutch, however, a burnout or 20 will play a factor on clutch life. Also.. 72K.. highway, city, both? My first CSVT had 130K on the original clutch (all highway). My current CSVT had 58K when the clutch was replaced with 20% left (mostly city). So, where those miles where driven is also a factor.
What should you not do after replacing the clutch and put a few hundred miels on it??? Race...

, as I will be needing some clutch work soon.