You could also keep an eye on the classifieds for some great parts. Staggered actions sell there often, as do custom barrels and stocks.

fyi, I have a McGowen 308 with 250 rounds thru it I am considering selling because I have 2 of them. It shoots outstanding. I just havent brought myself to let go of it yet. .I also have 2 6br barrels and will be selling 1 of them.