Well, you could just put a new 06 barrel into it. Not sure of cost, it needs to be seated and headspaced, crowned, re-blued then old hardware re-applied. still maybe cheaer than barreld action in that caliber.
as for safety, you do not need the one I am referring to use as a safety. In the action's current configuration the original safety also held the firing pin in a cocked position when you opened the bolt and then removed the cocking and firing pin assembly to clean inside of the bolt. Otherwise you have to do the edge of the table top trick. I know I have been there when I left the original safety in the fire position and removed the firing pin assembly.
Well anyway good luck, the action is a good one.