You stuck the inflated tire under soapy water and didn't find any leak at all? That's weird. My first choice would definitely be to fix the leak and using a tube would be a last resort; those wheels are cool.
I bought a pair of tire irons at the BMW dealer. They're made in China I think, but they are really well made, about 14" long or so. I used them the other day to change out the tires on my R65 and they worked well.
By the way, this bead breaker works great:
http://www.aerostich.com/catalog/US/Bead-Popper-p-17559.htmlIt easily broke the beads on my old Spitfires.
I used my new Harbor Freight balancer to balance the wheels and it worked fine and is easy to use. Needing an Allen wrench to tighten the set screws is a bit of a pain, but I always have them around anyway.
Unfortunately one of my brake pads decided to separate from the steel backing plate and fall out when I removed the front tire, so I can't test ride the new tires yet. I'm waiting for new brake pads.
