your clutch didn't last you at all? how many miles were on your car when you turbo'd? i'm getting my kit soon, but i don't have the money for a new clutch yet, BUT my car only has 14,000 miles on it.
My car had about 50.000 km on it, so that's about 33000 miles. Don't expect it to last long. My friend had about the same mileage as you on his celica when he got a stage 1. No slippage, but I really don't think your clutch will last long. If it slips only a little it'll be gone very fast.
If you take it easy with your turbo (Which you won't
) than it might hold up a while.
The problem is also you won't be driving with a good feeling knowing your clutch isn't gonna hold up.
A new clutch costs about $330 and install probably about $250 in the us. I really think you should go for it..
I really think it's better to install a new clutch first and have the turbo done a month later..
You can try this to see how good your clutch is..
rev your engine to about 5500/6000 rpm than release the clutch.. not too fast (it will drop revs too hard) and not too slow. if you take off at a constant 6000 rpms and the speed goes up while your foot is of the pedal than you can be sure you'll kill it very easy with a turbo.. That's how I found out my clutch wasn't that good anymore..