driveshaft can repair....but it will not last long....
there was one selling near pandan area....it was a ae92 supercharger driveshaft(in halfcut)...
i dun remember the price though...the towkay said he will take out the drive shaft if price is right.....
last resort is to change gb with the new set of drive shaft....
if not mistaken, u can take the ae92 16v gb and drive shaft to fit ur engine....