Updates....
Last fall I finished (enough to be road-worthy) my V8 Pontiac Firefly, which was a blast until the 170hp 305 V8 went south this May. I built a mild 350 V8 (ported heads, Lunati cam, big-block throttle body) which I just got back on the road this July.
I've been building my Compressor Shed, and I kit you not, it is SO NICE to have the compressor out of the shop.
I ran 220V through 6/3 wire from the breaker into the shed, into a sub-panel. From there, I took 110V back into the shop, to a switch by the man door (I had this already wired before I drywalled), and to a light switch and wall socket in the shed.
The switch came back and split off to run a bathroom fan (vent near the floor to let make up air in), an outlet (for the auto tank drain), and a 220V Contactor to disconnect the compressor. This way I can hit the wall switch on the way out, and the compressor is off, the fan is off, and the blower-off-inator is off.
Shed is insulated on all 6 sides for sound, but I screwed up on the door, making it out of 2x4's and PT plywood, not thinking that your typical door knob is not designed for a 4.5" thick door. Took me the better part of the day cutting/welding/lengthening the guts of the door knob to make it work. But it works!
And then I bought another project: