We don't own a class A or C, so I can't help you any with that. But keep in mind that that cab bunk is just like the pickup truck that you think you never use. The minute you get rid of it, that's when you need it the most. Good luck on whatever you decide, and post pictures if you do go forward with it.
Retired Army CW4 - "Waterborne"
2005 Chevy 2500 crew cab with Duramax/Allison
2014 Lacrosse 327RES
Days camped 2014 - 0, 2015 - 24