It's a great feeling when you have done the work yourself, not much different from building your own car. I built the majority of my garage as well, had some help from my wife and my buddy. The only parts that I didn't do were the concrete floor and the stucco. Framing, sheeting, roofing and electrical was all done by us. I worked for an overhead door company at the time and got a smokin deal on the 8x16 insulated door and operator, installed myself. I sketched out the design of the trusses to provide a storage space that runs the length of the building, 8 ft wide and 2 1/2 ft high. I wanted to go high enough for a full lift hoist, but city zoning restrictions have it limited to 14 ft 6 inches.