Welcome to iRV2.
I've removed the original post that you made in the "Just Conversation" forum and relocate dit here. That way you'll get more response from all the Motorhome experts.
I'm not real familiar with the build quality of these class Cs so I'll leave those comments for those who are. The one point I would bring up is to make sure that you have enough room in the coach of your choosing to handle your needs for that long of a time frame. That includes holding tank sizes, cargo capacity, etc. The newer breed of heavy duty class Cs that are built on a heavier truck chassis do offer a few benefits over the traditional van-based chassis. The Gulfstream EnduraMax
sounds like it might just work for you. It has the garage space, HD chassis, and towing capacity to pull a larger vehicle, like your F-150.
I'm sure you'll get lots of good responses from the friendly folks here. Again, welcome to iRV2.