I've never done one before.. Customer want's one 220V circuit, a couple 20 A outlets, some overhead LED lights (shop light style), and a generator plug in outlet on the outside of the vehicle. I'm thinking conduit or BX throughout, but he would need some type of panel box wouldn't he? All I can find is 30 A and 50 A pwer inlet kits to plug in a generator but the smallest panel they have around me is 70 Amps. The truck is only 80 square feet and it's going to be a coffee "food truck". Any guidance? I'm considering passing but I would rather not.