I can sell you a hyd clutch setup for the 4 or 5 speed. It is about $440 for the 5 speed and I would have to check on the four speed. Let me know. I would also install roller bearings on the clutch pedal.

 

You can make your own kit for about $200.00. using the same parts as the kit. and fabricating your own bracket. This stuff isn't rocket science.

Here's the master cylinder
http://cncbrakes.com/cncbrakes.com-a...711&subseries=

Here's the slave cylinder
http://cncbrakes.com/cncbrakes.com-a...305&subseries=

Here's the clutch line
http://www.racerpartswholesale.com/long47.htm

The reservior for a Mid 80s chevy (like a S10) will work fine.
Or you could buy a blinging billet aluminum one if you want to spend some bucks.

 

Here is a write up done by a guy who put a hydraulic clutch in his '68. this went with a T5, so the bracket you fabricate would be a little different. The nice part is he shows how to modify the clutch pedal. Just fabricate a bracket to hold the slave cylinder that bolts to the upper and lower transmission mounting flanges. I would not use a metal line off the slave cylinder. Instead run the braded hose all the way to the slave cylinder. There is too much vibration. Eventually the line will either crack or loosen, as it has no support. Other than that, it's a decent install.

http://home.comcast.net/~grabblue65/Hyd_Clutch.pdf

Good luck,

Scott