I'm in the process of purging off a bunch of vintage bike parts (and a few bikes that have been sitting collecting dust for way too long) and he came for gas tanks, and left with a DR400/GN400 engine (with all the wiring and other shit to run it), GS750 and GS850 forks, two vintage swingarms that have been sitting here for long enough I forgot where they came from, and KZ550 and KZ650 rear wheels. Hopefully he'll come and take the GS450 off my hands too. I've totally given up on the vintage bike shit, the market sucks, and there just isn't the desire there anymore with fuel injected bikes getting cheaper.
Once I dig up the associated stuff, I'm gonna try to talk FightEverything into taking a titled GS500E frame/suspension off my hands to stuff that 400 engine into. The Kohler engine still should happen.
Somewhere around here I have KZ650 triples that may be able to donate a stem to the GS forks... I'm just going to keep finding parts to send off toward this project of his, probably end up with a fleet of bikes by the end of it if he's willing to transport it a car load at a time as I decide what stays and what goes before the snow hits and sticks for the winter.