[QUOTE=hikingcamera;2734321]I'm not sure they will allow you to license it in a state you don't live in. And even if you could, you could get ticketed if you don't re-license it in your state. (When you move to a new state, you have a pre-set grace period to re-license your vehicles to that state).
THIS.
To add a data point:
I live in Washington and used to commute to Oregon. Oregon plates are way cheaper than a set of Washington plates, plus no sales tax. A lot of people buy private-party in Oregon, then never register the car (and pay the sales tax) in Washington, but just drive the car with Oregon plates.
Friend of mine tried this game for a while, in spite of my caution to him that he needed to get it licensed. He got caught in one of the periodic WSP sweeps, and it got REAL expensive, because the fine is prorated on the amount of time past the grace period. He was too embarrassed to tell me how much the fines were.
Short answer:
Your dealer can get the state registration papers and plates for Colorado for you. I recently bought a
Caravel 19CB in Oregon, paid my sales tax at the dealer, and just got my new plate in the mail a little while ago. It went on "Dot", Saturday.