If he's already wanting a chassis, it sounds like you may have had a different idea of what he wanted the gun for than he did. Tikkas are light, handy, economical hunting rifles. The 700 in a chassis is heavy and can be unwieldy. Adding threading, a can or a large muzzle brake doesn't fit the theme, either.

"Full time night woman? I never could find no tracks on a woman's heart. I packed me a squaw for ten year, Pilgrim. Cheyenne, she were, and the meanest bitch that ever balled for beads."