My rocket roller-skate is always under control...!
Thanks for the replies folks! I think I may have found a way round it as I have heard that the belts from a late Sprint will fit a late Sud as the mounts are there, just no belts! So I will try to hunt some down. Failing that I may try some from the wifes 33 that is about to meet its maker.
If not, then, I will risk it for a biscuit.