Okay, time for an update! Life has been chaotic and the weather hasn't been kind for letting me work in the (HOT!) garage so progress has been slow. She hasn't started yet, but I've gotten the ignition switch and system all wired up. Lots of plans in the works...
First off, my R1 fork conversion had nearly no steering angle between the GL500 frame stop and interference with the tank and radiator shroud. I've since removed the shroud until I can figure out how I want to trim it, but the tank still needed to be moved back an inch or so. Drilling the frame here was super hard, but I was able to make it work and ream it out with a 10mm diameter Bastard file to get...
I promise that the bolt and original rubber mounts are parallel in both the Y and Z directions. The photo lies!
I dusted off the TIG, and my own skills, and got a good enough weld and trimmed the bolt to match. My argon flow was a little screwy for this weld.