I'm in the first few phases of my conversion (flooring should go in tomorrow!) and I've drawn out a few sketches of what I want the electrical system to look like, but I'm not quite an electrician. I've calculated my load and think I'll probably use somewhere around 1500-2500 watts of 120v AC power and 400 watts of 12v DC power when parked, and something like 445 watts of 120v AC and 250 watts of 12v DC when on the go. I have a 950 watt AC unit for the summer and an 850 watt engine block heater for the winter, which obviously wouldn't have to run concurrently. I also have a 1000 watt instant pot (which I would highly recommend to anyone with the electrical capacity for one) which I would like to run on generator or shore power for an hour or less once in a while. My water heater is all propane, battery-ignition, and my range is match-lit propane. I'm planning on getting 4, 6v Trojan T105 batteries (or something very similar), which hopefully would let me run all my essentials for 2 or 3 days with a 3000 watt inverter, or, in an emergency, let me run the AC or block heater (depending on the season) for long enough to get me through the night/get me out of wherever I am. I've planned for 30 amp service and a 3600 watt generator, which will be a Westinghouse gasoline powered from Home Depot, if anyone is interested. If I properly linked to the photo, there should be a schematic that I drew of the system below. If anyone has any questions/comments/suggestions/insults, I'd love to hear them!
(Okay, maybe not the insults)