Buena Vista to Walsenburg. I’m pulling a 34 ft 5th wheel.
We also have a 34' fifth wheel and the above route is the one we always follow. I've lost count of how many times we've made this route.
We always use the Cotopaxi short cut instead of going on to Texas Creek, but you might not be comfortable with that short, steep, narrow, and not well surfaced road. But it is better now that it once was. We are comfortable with it, so at least I mention it.
We always enjoy going through Westcliffe and a few times have stayed at the Grape Creek Campground. We also usually stop at the divide between Huefarno County and Custer County. Sometimes we have seen a large herd of Bison very near the road there. Possibly a part of Wolf Springs Ranch.
It is not the best road in the world, but we always enjoy it and the portion between US 50 and Westcliffe is very scenic.