5-speed clutch/flywheel, 6-speed transmission

[colde]

I've decided to replace the dual-mass clutch in my '95 6-speed GS with a Spec Stage II 5-speed clutch. I've already located a 5-speed flywheel. So far, the only additional parts I've been able to ascertain are the flywheel bolts. My mechanic, despite his years of experience, has never done such a job before, and while he's willing to to it, he's reluctant to believe that the flywheel bolts are the only obstacle. He insists that I supply him with all the necessary parts so the job can be done all at once, uninterrupted. I'm not even an amateur mechanic, but I have to admit that I sympathize with his unease. Can anyone tell me what is necessary to do this job?