Hello Vince,
I am an owner of my 2nd Prevost Coach and love owing and driving one. Over the years I have owned many RVs and there is nothing like a Prevost. Regarding pricing go to Prevost.stuff and click on preowned. In my searches I would narrow down coaches to 100 K to 200 K. This will give you a wide range of choices. Decision for you is:
XL no slides, Xl2 or XL3 with our without slides H with our without slides (although coaches without slides are rarer) For me it will always be an XL XL2 or XL3
Making a decision on slides is your first choice. I chose not to have them as I travel for my performances and most the time I am pulling over for the night, parking in a theater lot or dock. I like the roominess of a non slide when slides are not out. But if you are traveling to a destination for a few days, slides are awesome. Slides do add the the budget as they will someday need to be serviced.
Regarding how much you spend at first fixing the coach. Question I have for you is: Are you on a timetable" Do you have to be somewhere at at specific time? In my case as an entertainer, I have to be at a show or I lose money and my reputation. So I am very proactive fixing everything, sometimes changing items my mechanics say could be an issue on the road.
If you have time on a breakdown and can wait a week or two to address the issue, the money you spend will be much less then in my case.
Gil is soooo correct, safety is paramount. When buying a coach make sure brakes and tires are in good shape. On this thread there is a lot of discussion on aged tires. I have found there are different opinions. I fall into the 6 ish year change out, no matter how they look.
Brakes get them checked and fix any issues.
My thoughts