I have two Clearpath SDSK-3411D-RLN motors for sale. Using these motors on my Shopbot Buddy made a huge difference in accuracy and speed, not to mention the lower noise level. They ARE NOT a direct replacement for the motors that the factory supplied. The Buddy frame is well designed and the work required to install these is well worth the trouble and expense. If you get them new they will be $350 each by the time you pay shipping.
$250 each or $450 for the pair. Shipping will be in a USPS one rate box, you pay half and I pay half.