Looks like it is a nice package and I am glad to see that the motors are available seperatly for guys like me who have g251's and just need motors.
The max voltage of 63 is close to the g540 max of 50v and should run real well.
Have you done any testing with these motors and the g540 to see how well this package works?
The price increase for the kit of $80+ (over the last package deal) is a little troubling, but I guess everything goes up in price.
Mike
Warning: DIY CNC may cause extreme hair loss due to you pulling your hair out.