@sweetpea if you can wire lights and outlets, the breaker box is a walk in the park! The main thing is keeping the wires neat and organized inside the box. I am assuming you will be running 220 to some outlets, that would be the only thing out of the norm for you.
I am not licensed and did all of the wiring for my garage and when I converted the built in garage to 2 bedrooms, a full bath and my office. I ran an 8 awg wire from the main box on the other end of the house and then wired the rooms the way I wanted them ran. Each wall is on its own breaker and the lights are on their own circuit also, so when you plug an iron into the wall it doesn't dim the lights, unlike the rest of the house that I haven't rewired yet. I hate when contractors shortcut the wiring to save a couple bucks here and there. If they can't bid it to be wired correctly, then don't bid the job.
I had 100 amp service ran to my garage with its own meter. The only thing the electric company did was connect it to the box on the outside. All electrical passed city code inspection first time through with flying colors.
I just can't leave well enough alone. On my 6 year old Sky Crapper I decided to go all out and do more than I planned to do. Also got some more work done on my friends Christen Eagle. As you can see the color left on the vertical stab after removing the old covering is easily removed with a little acetone
