Thanks Guy's, my friend is a 'social' racer. I've used Rad before, they are great value but these stock shocks have not only flogged-out the rod bush but also the piston AND the bore (tube). Would cost much more than Hagon's or Gazi's to rebuild.
I think we'll go the Hagon route, I'll give em a call. The Gazi website just lists road bike shocks, I didn't realize they handled vintage dirt also.