Holy crap. That is a lot of time in the car. Do you guys plan to lodge on the way, or are you just going to split up the driving?
Don't forget to check the engine oil level whenever you get gas, and make sure that everyone eats salads for the 24 hours before you go (will cut down on bathroom stops).
How long are you going to spend out west?
Read on another forum: "If someone held a gun to my head and said, "You have to move to Salida tomorrow", I'd probably do it. If they told me I had to go to Breckenridge instead, I think I'd just let them pull the trigger."