rdoty,
We have owned four class Bs and two Class Cs over the years. I can tell you this: if I were traveling alone and wanted to really see the country, I have no doubt what I would get for that task. Roadtrek 190P. We owned a 190 and a 210 over the years and the 210 was good for my wife, my dog and myself for two week boondocking sessions. The 190 is simply easier to park, drive and enjoy in my opinion. Adequate storage and adequate tank size....something that folks often forget to compare. There are a lot of 190s around and you can easily find what you need. I would look for one with the armoire replacing the third seat and have the ability to put a months worth of clothes in the B for one person.
Also, the Chevy 6L is a marvelous, trouble free, easily repaired engine. There is not a small town in America or Canada that doesn't have somebody that can work on this Chevy motor. The older Roadtreks are extremely well built, as are the Pleasure Ways. I just like the shorter, more elusive look of the RT. Park it in most any space and enjoy the country. As to the ability to go up them thar hills, I have been over virtually every pass in Colorado with one or the other of our Roadtreks. No sweat.
Paul