I believe I still have a set of factory hydros from a 04.5 truck sitting around somewhere. I know I have a stock flywheel & complete stock clutch & pressure plate. SBC rebuilds them for a fair price. Let me know if these interest you.
Its a diaphram style pressure plate so it would make for a pretty smooth operation. Tow and tear the hell out of it they are tuff! I have a stock pedal off an 06 from an auto swap! Don't think I have stock hydros though, but new HD hydros run $325.00 plus ship