I have a nice set of 650b wheels and an X-fusion velvet fork with the 650b spacer if anybody is interested. Classified ad with details here:

Wheels
Stans Flow Rims, Hope Pro2 Hubs, 650b - Buy and Sell and Review Mountain Bikes and Accessories

Fork
X-Fusion Velvet RL2, 2012, 650b - Buy and Sell and Review Mountain Bikes and Accessories