Do most class Cs have Alumframe® construction?

If it has the floorplan you like, you can deal with the CCC, and it's not hiding major defects, this coach looks very good. I know I'd consider it.
A number of the options are now more common than not.

Ducted AC is now very common
Heat Pump is legitimately an option
Fiberglass walls are now the norm
Generator and Wheel Liners are common standard equipment
Ice maker, Convection, Inverter, Attic Fan (?) aren't so common
CB... nice for some, most don't care
DSS... potential to be useful