If he wants to spend the $$, NULA would probably build a .350 Rem Mag for him.
http://www.newultralight.com/HTML/custom-rifles.html :
"Model 28 Short (The Ultimate Alaskan Rifle) - The Model 28 Short was originally designed to handle the 6.5 and .350 Remington Magnums, but now handles the new .300 Winchester Short Magnum and all of its offspring, as well. When light weight and power are what you need in your rifle, this is the gun for you. $3,900 (left-hand add $100)"
The Remington Custom Shop still lists the Model 7 Custom Mannlicher Stock in 350 Magnum - don't know what it takes to get a rifle out of there these days.
http://www.remingtoncustom.com/HunterGrade_7CustomMS.aspxA 700 Classic may be one of the easier 350s to find used, great rifle ( I like mine!), but it will never feel like a 600/660.
