pm'd you this but I'll post here too.
Before you buy parts, try re-splining your clutch linkage under the dash, I had exactly the same issue you describe and fixed it last night in about half an hour by re-splining the arm that connects to the clutch master cylinder pushrod onto the connecting rod from the clutch pedal arm.
I hope that makes sense, I'm waitin to get my good computer back to do a write up on how to do it for the FAQ, that'll include pictures.
all you need for tools to do it is a 19mm socket for the bolts on the end of the connectin rod, and a pryin stick of some kind, or if you're really hoity toity, you can use a puller to pop the arm off the connecting rod.