Silverthorne?? If you were ever able to make it down I70 to the Evergreen area then I wouldn't mind a meet and greet. For now- yeah get a pistol in your possession and open carry it. No registration in Colorado means there is no red tape to cut when gifting pistols. From one legal adult to another- you may simply hand it over- done deal. It would not be illegal for you to gift dollars to a 21+ adult. That adult purchases a pistol. That pistol is gifted to you.
On the purchase form there is generally a question "Are you buying this firearm for yourself or somebody else?" Look out for that one and anticipate your answer.
Welcome, Moses. What CS describes above skirts Colorado Revised Statute 12-26.5-105, AKA "straw purchases". But then it's the seller who's on the hook, not the buyer. You could probably get away with it even if you were caught, but the kind of person that'd be happy toplay fast and loose with the law like that is probably not the kind I'd reccomend associating with.You'll take your own chances finding "an adult to purchase" and their reaction.
Buying from a private seller you don't need to play around with "gifting" and finding loopholes. Kingfish's advice is the best. Particularly about practicing. "Get a pistol in your possession and open carry it" without practice is about the worst advice you could ever take.