Monaco has manuals online for these models, but as Tom said, they are somewhat generic. Better manuals are available for the various OEM components like stoves and refrigerators.
Buying an older coach that was high quality when built is a good starting point. Fix the things that are broken. It helps if you can do most of this yourself, and you can if you're at all mechanical.
Use the rig for a season before deciding what needs to be done to "make it yours". We took out the recliner and lamp table and moved the TV to that space. Made viewing TV much easier on the neck.
Sure, things are going to break, whether on a 17 year old coach or a brand new one from the factory. On a new coach, you take it to the dealer or factory to be fixed under warranty. On the older rig, you fix it yourself. Make sure you check the fridge for a safety recall and verify whether it's been done or not.
I like the old buses. They're not the typical paper-bag motor homes you see everywhere.
Jerry & Jeanne
1996 Safari Sahara 3530 - 'White Tiger'
CAT 3126/Allison 6 speed/Magnum Chassis
2014 Equinox AWD / Blue Ox