Awesome story, great find and a lot of raw resto potential in that rare piece of titanium art. If it were mine, couldn't wait to get it in to pieces and starting the always so sweet (and slow) resto work!
I have some RM17 with XT m730 hubs and Nobby Nic rubber sitting spare. The wheels are the right ere pretty much and a nice grey too so sort of matches the frame. Not sure wether to go period tyres or new, probably period. Defo not doing the skinny tyre/road bike thing. I'm going to ride it home from my studio today to see how it feels. Then rebuild slowly from next week