I like the term "slapping everything together" as if its going to be a weekend project. Better brace yourself. The "slapping" may be your hand on your forehead. Not sure I would call $476 Canadian cheap for a THC even though it does have the lifter part (You still need a Z ) . Did you find anybody that uses that for plasma before you pulled the trigger?. That uses capacitance for measuring the arc gap. It's a big old ring that hangs down around the torch. The 45XP is a great machine, but it cuts at .063 above the material and a variation of more than + or - .01" will result in some poor cuts. The predominate method of torch height control is to sample the arc volts and adjust via that number. I suspect that at the higher cut rates for thinner material the response of that THC will be pretty slow . Its probably a fair height control for really think material that is pretty flat or for oxy-fuel cutting where there is no feedback voltage from an arc and you have a much wider gap and tolerance .
No mention of software or how you are going to generate cut files. How does it do the IHS (Touch off) . What about pierce height and cut height? Does it have any form of anti-dive? Is it automatic or something controlled by software and by which software?
Not sure you will get much help with that mix of parts.
Outside that its darn near perfect!