Sounds to me like you have it about right. Just make sure you get the proper bolt head for that left port ( i think the R bolt L port guns have a special or different one). A lot of people do switch barrel rigs. Me, so far I have been trying to keep one barrel on one action, and I guess as long as I can continue to afford recievers and stocks to go along with the barrels then thats what i'll do. I personally like having a dedicated rig, but I am planning to move out to the country in the next couple of years once I find the place that suits me and I imagine that when I am somewhere where i can shoot all i want a switch barrel rig will just kinda happen .