I've tried a few different configurations. Eventually moving away from them for various reasons over the last 20 years. Here are a couple of my notes:
1. Started with a 1/2 ton truck & Fiberglass topper. Loved the setup in the bush. The fact that it never leaked was a huge bonus. Eventually I moved away from the topper to an inexpensive camper setup for "Convenience" in wife speak. To me it was ideal because it was light and my sleeping bag never got wet. Only minor drawback was condensation (Sleeping warm breathing bodies will do this anywhere) inside when it was cold.
2. Same 1/2 ton truck, overload springs and a small camper. Liked it, but heavy. Hauling an 8' camper and a small trailer for quads etc was a lot to haul for a Chevy with a 305. Also the camper was old and tended to leak. PITA. Unloading and loading also became a chore. Loved having a kitchen in the camper, but if you're going to have a kitchen one needs a bathroom... Apparently.
3. So for the family I upgraded to a Dodge Diesel 3/4 ton and 26ft trailer. Hated it. Loved the trailer and the truck, but hated pounding that poor trailer over miles and miles of rough roads. Then when I get to a location I needed to sweat the clearance just to get through a ditch. I did it for years, but it wasn't the best setup for rough camping. It was too "City".
4. Now, Toyota Tundra Half ton and an RTT, and/or a relatively inexpensive 19ft hybrid ultralight RV. Love them all. I can haul them all or any particular one as far as I like. I don't feel bad pounding the trailer over rough roads, and the RTT I never even notice.
So, in summary, given my experiences, if I were looking at a Colorado, I'd think light. RTT, or super light pop up camper AT MOST. I always prefer to run under my vehicle limitations for loading and power. You CAN add air bags, overload springs, performance chips, and start beefing things up, but customization costs money. A suggestions is to keep it simple (For goodness sake don't look to my truck build as example of simple lol), RTT and a cage to mount it is a good example.
Above all, post photos of what you decide.