Advice on converting my VMC

[JAZZCNC]

My advise is don't buy any of that lot from Automation or Kelling cnc as it used to be known.? You'll be paying far more than need to for only average components. (the fact your looking here makes me suspect you've been around our american cousins on cnczone.?)

First the Drives are just rebadged cheap chinese drives and for less money you could by Leadshine drives that are much better and higher voltage. Like AM882 or EM806.
Also take note you keep showing links for drives that are only capable of 50Vdc max. Even the higher 8056D can only handle 70Vdc Max which means allowing for safety factor you'll need to run them around 60Vdc.

The PSU is fine (except it's too large for those drives) but you could easily build the same thing for half the price. Very easy to build as many on here will tell you.

The motors are ok but do you really need 34's.? What size machine is it.?

Regards the 24Vdc and noise(EMF) then this is mostly for control circuits. The CSlabs only works with 24Vdc so you'll still need 24 supply but only small 2-3A switch mode affair for e-stop, limits etc.
The higher voltage lowers the chance of EMF affecting signal lines and when used with correct shielded cable you'll have very stable system. Coupled with high quality of Cslabs controller you'll be very noise immune.