I love my Rapidair 3/4" kits. The only thing I wish I had done is my or make a straightener for it. Also if you can install it when it is warm (80 degrees or so) it will unroll easier.
And it looks like you will have quite a big wiring job in front of you. If your shop is tied to the house main which I assume it is make sure that the main is large enough (200 amp or better). It cost me extra a month but my shop has its own service only because of the distance from the house and if I want later I could sell it separately. Both the house and the shop have 200 map mains.
I've heard many good things about the rapidair kits, I'm certainly considering buying a pair of them. My current plan is some sort of DIY cooler setup off the compressor, maybe some solid line from the compressor to the main building and rapidair from there. My current "cooler" setup is ineffective, my M60 filter element gets absolutely soaked.
The garage is indeed ran from the home, the house panel is 200a. I should consult an electrician for sure. I don't know if it would be cost effective for us at the moment to get dedicated service, if I'm not mistaken the lines are buried.
Truthfully, if I had a blank check I'd find a way to completely replace the existing electrical with all surface mounted EMT Conduit. I think the interior of the building was wired for electric prior to insulating and finishing the walls, so the OSB is cut around the outlets. Some outlet shims and new faceplates might help hide that however.