Forget the 700 action!!!!
It will cost you almost as much as a custom action if not more depending on what you do. Will not be as smooth or reliable with the Remington riveted extractor on the magnums. More importantly the second you leave the gunsmith shop after putting all that money into it; it is only worth $550 max.
get the custom and be happy forever. Too many great customs to waste time and money tinkering wit a 700.
It will cost you almost as much as a custom action if not more depending on what you do. Will not be as smooth or reliable with the Remington riveted extractor on the magnums. More importantly the second you leave the gunsmith shop after putting all that money into it; it is only worth $550 max.
get the custom and be happy forever. Too many great customs to waste time and money tinkering wit a 700.