I am starting in Minneapolis and getting to Loveland, CO and then taking this route to Golden. 8GB of memory for the camera. I am so ready for this trip. Perhaps I will run into some of those making their way up from the desert southwest to Golden. The clock is ticking... :yahoo:
Wow! Quite a ride. I am envious.
But.................
In my not so humble opinion, I think you are making a mistake on the routing through southwest Colorado. The Million Dollar Highway - US550 from Durango to Ouray is an absolute MUST. Especially if you have never done it before. While on your route, Montrose to Delta is freaking boring, and can be pretty darned hot.
This is what I would do: At your point 'O', head south to Durango. From there east to Pagosa Springs. From there north on 160 to your point 'T'. From there backtrack your route until you get to 50. Then make a trip west to Black Canyon of the Gunnison National Park, or just head east directly to Gunnison, CO. Now you are back on your route.
Even on this route, you are missing Mesa Verde National Park, which is one of my favorites, but to get up to the park is a lengthy detour. Well worth it though.
As I said, if you have never been there, you want to do 550 between Durango and Ouray. Scenery-wise, it just doesn't get any better.
Also, at your point 'K, I would recommend heading south and and taking 89A east from Fredonia vs. 89. Much more scenic on the southern route. 9 times out of 10, I will take 89A. It will be a bit hotter though. If you have time, you can make the 80 mile round trip to the north rim of the Grand Canyon. This is all at 8000-8500', in the pines, and cool. Then of course you get the awesome view of the Grand Canyon.
Lastly, at Kayenta, head north on US163 through Monument Valley and Mexican Hat. Then take US191 south back to US160 and back on your original route. Much more scenic. Again, if you have never done it, you want to!
Enjoy!