For what your looking for I'd say "Douglas Barrels" in WV. You can send them your barreled action and they will take the old barrel off and put your new Douglas barrel on for under 500.00. Yes, that includes "all" the gunsmithing but the barrel will need to be blued. I think thats a pretty good deal. I have one I want to send in to make a .264 Win Mag out of.
Anyway, check them out. This link is for the page I'm telling you about.