LUK and Sachs are solid companies that make inexpensive OEM type clutchs. However even a basic one like this is cheap.
http://www.amazon.com/Exedy-Replacement-Clutch-Mustang-1994-2004/dp/B0057990K0/ref=sr_1_1?s=automotive&ie=UTF8&qid=1420731569&sr=1-1&keywords=clutch+Mustang+v6