HOM - I don't know if all Country Coaches have semi-monocoque chassis. I believe the answer is yes. I have a brochure on my 2002 Affinity and it says in the first few lines of the specs that it has semi-monocoque and a steel cage construction. Damon Rapozo used to have all the CC brochures on line. He does not any more. He does have the years and many CC models in his web site. If you wanted to know for sure you could call Damon or the Country Coach factory. The CC factory is in Junction City Oregon. Oregon Motorcoach could also tell you. OMC is owned by Bob Lee, Ron's brother. And likely so could Kevin Waite who operates an independent shop with an associate Butch in FL. Kevin is in OR.
The previous poster who listed the Country Coach models forgot the Lexa. That is above the Affinity and below the Prevost conversions.
By the way, I have never been in a Country Coach that seemed poorly built or cheap. And all that I have driven, which is quite a few seemed solid. But then I love driving these things and so enjoy most.