That's a lovely 320 x 157 pixel map, but useless for anybody to look at. I can see you plan to hit Arizona, for example, but where that goes is anybody's guess.
I made a similar (as far as I can tell) trip a couple years ago, and can tell you that 6 weeks is the minimum I would even consider doing that. But then I like to BE there (wherever there is) longer than it took me to GET there. Two weeks travel time to the farthest point, two weeks seeing the sights, and another two weeks to get "home" does not exactly qualify. And two weeks to drag an RV from South Carolina to (say) Las Vegas, falls somewhere between forced march and a reasonable trip, but gets nowhere close to a leisurely journey with time to see the sights.
I took 7 weeks, spent 4 days in Russell, KS with a breakdown (ever try to get repairs going on a saturday morning in the middle of nowhere?) and a week at Photoshop World in Vegas before wife and I spent her two week vacation circling the Grand Canyon, and visiting Bryce and Zion before she flew home for work while I dragged the trailer back east. Loved it, coulda spent another month to visit Moab, Death Valley, etc.
