It's all in the prep work but you can do it yourself. It is especially easy on a new car since there is almost no paint correction to do. I use McKees 37 and it's fairly easy.
The biggest problem I had was wiring. Casper's did a little ECM adapter that allowed me to tap most of the ECM harness that I need so a plug and play harness would help.
Just FYI. If one of the trans bolts stick in place and you try to weld a nut on them to take it off. Welding sparks will ignite the foam headrest of your creeper that's soaked in transmission fluid and you won't hear it start over the MIG. Just FYI.