The OP says he isn't concerned about resale value, and yet he keeps coming back to resale value. If the OP is assuming that the Gold Rush economics of the ND Oil Patch will still be in place when he tries to sell his trailer eight years from now, he should study up on supply and demand.
As far as towing a 15,000-lb (dry) trailer with a 1-ton, I would leave that up to the towing experts. But I would at least urge the OP to try towing SOMETHING before he tries towing something that heavy.
Or consider having a professional trucker move it for him, the few times he's going to move it. But then he has to reason why he doesn't just buy a bunch of park models and park them places, as was suggested previously. Personally, the more I realize I hate towing the better that idea looks to me.
As far as the OP's original question about electricity (where he mentioned resale value twice), I would agree that 50a should be considered the minimum for a rig that's mostly going to sit.