Cheers Lynx, wouldn't mind a hand. I actually still have those jeans that you were after on freecycle a while back, remember?
I put a new tubeless rim on front tonight - new bolts went on about three full turns of thread. Is that enough? Will pop them off and Loctite them back on when I get a moment.
They have a recess around the bolt hole that means I can't use normal bolts, only the tall ones provided with the rim. I've seen people online complain that the studs end up being too short with these new rims, but I don't really know what too short looks like.
Also realised that I need to remove and powder coat the front hub before I do the brake rebuild, or after, I suppose, as the powder is flaking off in great big chunks to reveal furry aluminium...