Love the XS650 Stephen! I'll definitely be following your progresd on the build.
Im a big fan of the XS650 myself snd built a cafe racer version a few years back. Ive still got it but haven't ridden it in a long time. I'm keen to build another one day and ive got most of the bits. I wouldnt mind doing a bobber or a flat tracker.
Here's my old girl.
Cheers