usually the owners manuals are very general. ur best bet is to download the individual manuals from the manufacture web site. ie, dometic for the frig and possibly the air conditioner, etc. there are electrical diagrams on here that should give u a general working knowledge on the electrical system. they probably won't be a match but are still usefull. the individual component manufacture brochures (manuals) are usually supplied and useful.
on my 5th wheel, the manuel that came with it was for a tag along. not anything in there but general and nothing specific to the hydraulic slide system or much anything else. not even what holding tank went to what.
other than that, there is a wealth of knowledge on here and i'm sure someone has a good answer to ur questions.