I take road trips around the Western US fairly frequently myself and I've helped many friends plan them, as well. My top three pieces of advice are:
1. Check driving distances on a map and be reasonable about how much driving you're committing yourself to. You seem to be doing well at this already.
2. Continuing in the vein of #1, consider how much time you will be driving versus how much time you'll have for activities at each of the places you visit. Again, you seem to be doing well in this regard already.
3. Consider the impact that weather could have on your plans. As
Gardyloo pointed out, some of the parks you wish to visit are at higher elevations. By November there could be snow closures and dangerous conditions. This is not a reason to
avoid these places-- just a consideration to include in your planning.
Check out the threads in the
USA West forum for more ideas. (Mods, I recommend this thread be moved there.)