I know south from Montrose to Ouray is not bad. It's the more boring area. I believe there is an RV park right in Ouray near the hot springs.
ParkTimberidgeThere is an area in Ouray to walk back along the river on a steel walk way that is nice. Watch for a rain storm as the water fall and river run through and into a sluice way/tunnel and down to the main river. It rips through there.
Telluride has a lift to take you up during the summer. Shops and restaurant at the top.
Don't take your camper in but you should be able to get to Animas Forks ghost town.
There are a lot of trails and some or portions of some of them can be done in a truck. Ask first and get maps.
I have been down the south side on the million dollar highway about 6 years ago and it is interesting if you are on the passenger side. There are some hairpin turns near town but I dont think they are that bad. It's been a while for my memory but I would take my 5er through there if I go back this summer. There was no shoulder on parts of it and the white line was right at the edge but I'll do it. I'll just slow way down and if anyone has a problem, kiss my or pass. They'll get over it.
If you are north/East of there, the Grand Canyon of The Gunnison is nice. We also did the area to the north west which included Almont, Taylor Park, Tin Cup and St Elmo. Very beautiful areas.