Manual milling machine retrofit with DMM-tech drives and motors

Hi

I'm looking into the options to retrofit a manual milling machine (xy table + spindle on the z axis) with servo motors.

I found the DMM-Tech line of DYN2 / DYN4 drives and servos which I thought were interesting from a performance and price point of view. I'm leaning toward the DYN4 because if I include the power supplies the price difference is small. Unless there is a good reason to go with the DYN2?

Also, I thought about buying 0.75kW motors and drives since the price difference is so small (particularly if I think about what the shipping to europe costs) and that I might need bigger motors in the future. Unless there is a good reason to buy the smaller ones? In stepper bigger motors tend to cause higher vibration but this should not be true for servos(?)

For the controller I was looking at the MESA boards. Here I'm a bit confused about all the options. Is there a list comparing the different boards / options? I could go with a 7I76-5I25 PLUG-N-GO KIT since I have a board with PCI connectors laying around but is there a good reason not to? The site really makes it difficult to compare their products...

Thank you very much for your help!

If you use the Mesa 7i77 I think you need the DMM DYN4 controller as it has encoder outputs. The DMM Servos are awesome.