In Me and NH you can do all the work yourself only permits needed are building permits in most, but not all, towns, Perculation test of the soil if you are going to have a septic system Leach bed and electrical have to be inspected. (Electric by town building inspector or Electric Co. before they will make the final hook up, You pay for everything from the last existing pole, first 300' are free. Leach bed has to be inspected by the the engineer who did the Perk test before you cover it. )
You are absolutely correct Tom.
The last house we had in Maine I did all the work my self including plumbing, heating, septic and electrical. I even hauled most of the materials myself. I chose to sub out the concrete foundation, chimney and some brick work but I could have done that myself as well.
In order to get a construction loan the bank required that the building inspectors submit a letter stating that everything I was doing was being built to code and was being inspected on a regular basis.
The electric company at that time would provide one pole at no charge so I trenched out to where the pole was going and ran underground to that point. I provided the conduit and clamps and they made the connection at the pole.
After the town inspector signed off on the electrical they came back and set the meter.