I look at it this way, if you have a barreled action that you aren't going to ever use, than swap it out. Don't forget it still cost you for the rifle. Now if you go out and buy a donor rifle, it still is going to cost you bucks for it, last remington I bought was $350. Now add that to a new barrel kit, stock if you want to change out, you are talking equal to if not more than a new rifle. For me to buy a donor gun is to get a rifle that will be custom and shoot extra good as compared the standard rifle. Just my opinion.
Polack