Bill, I talked to Oak, and he said BMW frame jigs are rare, and someone that knows how to check it is even rarer...
No doubt there is a place in California that can do it.
I just have to dive in and see what god's plan is for me, cause if this doesn't work out, it is eBay time.
I also thought I would compare the distance between the frame rails back by the foot peg mounts before I start, just for the heck of it! I would LOVE to find a big difference!