Hi,
Have you considered renting a class A for two weeks to see how you enjoy driving it?
Is this to be your full time home?
Of the two mentioned, I'd get the old one inspected by a mobile repair man, with particular emphasis on water leaks.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.