I'm sure it's available in the UK (where my wheels are being built). I went with the XRD-3 as it's the same price and alloy (lighter, and the rim it'll be fitted to is also alloy).
I'm building a path-racer style bike, so I'm not really concerned with it being 100% period correct, more interested in saving a bit of weight here and there.
For the front, I've ordered an X-FD. Again, it's an alloy hub to match the alloy rim. The BF is also available I think.
I've already spread the frame/forks to accommodate the new hubs, and I've filed the bottom of the front dropouts for the slightly wider axle. However, if you really think I've made a mistake, I have another frame (see my recent post about lugwork) which I haven't touched yet, so I could still change things around. I think they're building the wheels tomorrow though, so I'll have to be quick
What do you think?