Buying a Motorhome not a mechanic

I think you should first figure out how you are going to use it. I mean going out for a weekend or 3 or 4 days or going on a 4 week road trip. Driving to a place and plopping down or moving about every 3 or 4 days. These are all considerations as to how comfortable the coach for that activity. Sitting for a couple of hours or for days. And the same for sleeping. Making up the beds every night or time you move or having it ready.
That's where I'd start. Then get a floor plan and go from there.