Harvey: If taking hwy 287 N I would get off and head for I 25 before you get into Denver. To much traffic and it will be all stop and go due to traffic lights, you will be driving through the big city.
Frontier days is great, but unless you have made reservations for anything, you will be S. O. L. even motels and campgrounds around me are filled up.
Beware of the wind. it can come out of nowhere. One time I was stopped in Rawlins getting fuel and the wind ripped the refer vent off the top of my TT.
I did get it back and after looking at it, the screws to hold it on were still in the vent along with a bead of caulk around it.