Looks like you’d be looking at pre-owned as $60k won’t buy much, no less a oil-burner....
Your coach will likely have an onboard genset from the factory, which will be rated for anything you have... So don’t expect to have to be forced to make any generator decisions
As you need to sleep only 4, sounds like you would not be looking at Class-C (which is good, as the overhead bunk is always a long-term liability)... Class A is where you want to be... but 24’ is tiny... 28’ would be the smallest you’d want if you expect a separate bedroom from the living space (believe me -you want that)
4WD?!?!? Why? You will not find that in a typical Class A, C, or even B .... not to mention you won’t need it... rock-hopping a motorhome is not a good idea - unless you‘ve got a rental
all RVs, whether you’re looking at standard brands like Jayco/Coachmen, or all the way up to Airstream, use the
same systems (Atwood hot water tanks, Suburban furnaces, Dometic or Norcold fridges, Dometic or Coleman A/C, Thetford toilets, Onan gensets) and none are really screwed (stapled) together with anything resembling decent craftsmanship - so don’t get your expectations too high... sexiness of the premium models is gonna be skin deep / lipstick... as those leather couches etc are more than likely bonded leather and will look like crap in a few seasons of normal use... likewise even
upgraded cabinetry isn’t really well made...
i’ve owned a couple rv’s (motorhomes) over the past dozen years - gotten my hands dirty working on mine / upgrading / troubleshooting ...
will be happy to answer any questions