I got my B-series 8.5lb. Cusco flywheel for $200 shipped off eBay 4 years ago, used but being one piece chromoly and showed no signs of abuse I wasn't concerned. Then got a Clutchmaster stage III clutch kit for $200 shipped as well and still using that same pressure plate 4 years later.

Then i've found a few ultra rare parts for my new project car the last couple months, one being a brand new OEM BMW e30 M3 side skirt for $120 shipped, etc.

Craigslist, eBay, and forums have everything you need for a fraction of the cost...it just takes time and effort to find it!