I've got a left hand Japanese Mark V deluxe in 300 wby that I am going to take on an elk hunt. It has the wood stock that is a little heavy for my liking so I wanted to get a new stock instead of spending the money on a new gun. However, I am new to this so I need a little guidance. It is as easy as ordering a McMillan hunting stock and dropping the action in or will I need to send it off to get it custom fitted? Is there another stock company I should be looking at? Is a early 90s Mark V action the same as current actions or will I run into fit issues? Thanks in advance for the help.