I received the motors/drives/power supplies from Wantai
I decided to order from Wantai instead of StepperOnline mainly due to shipping costs (45$ vs 108$) and the 2 x 350W power supplies vs 1 x 400W, both 36V. Wantai also throws in a breakout board which provide opto-isolated outputs for the drives. Packaging is neat and everything is in good shape.
Linear rails and ball screws are expected this Friday, stay tuned!