An email or letter to LTR might be of benefit since SA is a LONG way from the USA West Coast. Should be no conflict on sales. I call my modified 630 my Dirt Cadillac now for a good reason. What ever he did was magic and I am sure he would share with you. He could probably look up what he did to my bike.
I e-mailed Les a few times and never received a reply. In the end I got someone local to work on them and fit the compressor dampeners etc.