For the chassis, look at the Chilton manuals at your auto parts store......Ford Chevy????
For the firg, stove, water heater and furnace use Google and look up the brand and mocel. Lots of the manuals are available on line.
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Currently FOR SALE Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer