Back again.
Following the advice that we have received, we have booked our flights and R.V. It is now looking like this:
Day 2 Denver - Estes Park
Day 3 Estes - Leadville
Day 4 Leadville - Moab
Days 5,6,7 Moab
Day 8 Moab - Vernal
Day 9 Vernal - Jackson
Days 10,11,12,13,14,15,16 Yellowstone
Day 18 Yellowstone - Cody
Day 19 Cody - Casper
Day 20 Casper - Boulder
Day 21 Boulder - Denver
What do you think?