These bits would make a really nice wheel set and could probably be built for under $400.00

Mavic xm719 disc rims - $150.00 / pair
XT disc hubs - $44.00 front and $60.00 rear
Dt Swiss spokes 2mm - $75.00

Parts = $329.00
Build = $60.00 - $80.00

Total = $389.00 - $409.00