I have electric heat ceiling hung. I was going to Have Benny do me a propne unit but much to expensive around here. 75' of 10/3 romex a 30/2pole breaker and some staples and a piece of conduit is all it took. Have about $400.00 rapped up into plus my labor. But my garage is only 24X24. Most of the time when we did jobs like yours Rob, Companies went with gas or 480V-3 phase heat. Electric is the easiest/cheapest in my opinion right now.