Camping in Southern Colorado - Ideas??

I would recommend staying at Mesa Verde for a couple of days. The campground is nice (not a resort) and will allow you to explore the park with minimal travel. Elevation is moderately high so temperature will cool off nicely at night.
Silverton is very interesting, but I highly doubt someone from Louisiana flatlands would find much joy in piloting a motorhome from Durango to Silverton and even less between Ouray and Silverton. That road has great scenery but is a bit of a tense drive for us flatlanders.