You can still get a motorhome manual from the new Fleetwood, but the pieces of the old company that made trailers are scattered to the winds. No manuals or parts available. But there wasn't a trailer owner manual to begin with anyway. Just a suitcase full of manuals for the various components. Those manuals are mostly available online, in downloadable format. Fridge, water heater, furnace, a/c, etc. The rest we can probably fill you in on right here, but you will need to ask more specific questions.
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL