I don't have a bus yet, going to look at one this weekend. I am trying to figure out electrical before I buy. For months I have read, and read, and read some more info on here about electrical and am still confused. I would like to run off shore power, a generator, a battery bank, and possibly solar (in the future). I am going to do a more elaborate job in the future, but for now I'm just trying to get some things going for a family trip in late June (4 people). My main concern will be AC and a fridge, because I was burned real bad in 2011, and I have to stay around 74 degrees. I plan on hooking up to shore power whenever possible but run off batteries while driving 8-10 hours a day. My plan so far is: plug(50a) to gen. or shore, plug to prog. dynamics mighty mini dist. panel w/charger (3 n 1?)then to dual AC's(btu?), fridge,and outlets(2-3), then bus alt. to bus battery, then to isolator, then to battery bank, then to panel? Do I need an inverter? Also I don't know how to size AC's, gen, or battery bank. I would like to be able to sleep in bus eventually, but not necessary now. And eventually toilet and sink. Do I need a transfer switch, separate converter, inverter, and AC panel? Lights(led), pumps(black & gray water), bathroom fan all 12v dc. Is this feasible? My budget is reasonable since a handicaped RV is really expensive.