You can download a manual and brochure here
https://www.monacocoach.com/service-and-repairs/
You can also contact REV and request a copy of the MSRP and data or build sheet. It will list the major components by make/model and sometimes SN.
Also request a PDF copy of the wiring diagrams
If you are successful in getting a data sheet start searching for manuals and operating guides. Suggest you create a file system on your computer for all of the info. I have separate folders by area (chassis, engine, house, generator etc.)
You should be able to use the VIN and go to the NHTSA and check for recalls.
https://www.nhtsa.gov/
Lastly, I'd recommend you join the Monacoers.org site, lots of good people on the site. They have a parts listing and database for everything Monaco