I'm just starting a CNC conversion of my benchtop mill/lathe (Shoptask 1720XMTC) and am presently arming myself with as much knowledge as I can gather about how to go about it.
I'm sheepish about offering my help with your project having not completed a conversion yet myself, but I'm local (Hayward) and willing to lend a hand. I'm a programmer by trade and know enough about electronics to be dangerous. Still, it may end up being a case of the blind leading the blind, but at least you'd have someone else to blame along with you.
If I can assist, let me know.