Joey,
Your going to love your 412. Its a little tank, boxed ways, nice foot print, powerful, ect ...
There are several things you might consider doing a little different. 1) PoKey is only OK for MPG, not great, use different Inputs for your MPG. 2) Add Mod bus serial for additional non-realtime inputs (ATC Inputs, Oil Level, Draw Bar,... ). 3) Try to keep you VFD (we had to make the spindle orientation ourselves and it was a pain)
Do you have 3 phase available ? Some of our design changes were based on the fact that we only single phase and power is limited.
Some of those boards you see are hand made to interface PC electronics to the machine hardware.
I will be glad to help you with your build, I would suggest doing it in phases one step at a time and test each stage before moving onto the next.
Start a new build thread to document each step.
We run this machine at least 3 to 4 times a week.
Thanks
JH