Assuming your tow vehicle has adequate power, I agree it should be no problem. Traveling west bound it is a long and fairly steep climb up the east side. Going down the west side is not as steep. We tow our 5er that way every year. The previous 2007 F350 6.0 diesel was straining by the time we reached the top and would be down to 50 mph or less. The current 2012 F350 6.7 handles it much easier.
Any concern about power and you can go west at Pueblo, over to Poncha Springs, and south to Alamosa. Not as steep that way and still a good road.