These 2 barrels are ready to just screw on. The chances are the head space will be correct but they may and I say may need slight machining to fit your action if it is older or newer than the barrel production run. I say may as the 3 barrels I have replaced have all been fine and gone through proof without machining and only one screwed up tight without fitting so the lettering was in the correct position. I can loan an action and barrel wrench to any buyer if you wish to do an DIY rebarreling.
Remington 700 BDL 30-06 barrel - Blued, Mountain rifle profile, chambered and threaded - Bore is Mint but externally some marks £30
Remington 700 BDL 300WSM Stainless Steel barrel - chambered and threaded Mint internally and externally £65
These barrels were purchased from a custom rifle builder who used Rem 700 actions as a basis for his rifles, so they are in effect new having been removed so the action could be modified and a new rifle built on that action. I have never used them and since I am now reducing my shooting significantly and selling some of my rifles I am happy to sell these on.
I also have a 308 barrel which I am happy to keep as a spare for my own Rem 700 308 but would sell at £100 if someone needs one. It is again mint inside and out with a BDL profile and a matt finish.