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If you solve the centerlock -to- sprocket problem :), shimano hb-m775,hb-m785 are good candidates. It seems like it is pretty easy to mod them for 10mm thru-axle:
http://forums.mtbr.com/wheels-tires/new-xt-rear-hub-bolt-conversion-401122.htmlDrill out the qr caps and the 14mm axle is 10mm internally apparently
edit: ok, and you need an extra cut down rear axle for the 120mm spacing
velosolo have some spare axles:
http://www.ebay.co.uk/itm/Shimano-XT-M756-FRONT-HUB-AXLE-x-2-FREE-SHIPPING-in-UK-/380288531765?pt=LH_DefaultDomain_3&hash=item588af67d35