Are you looking for a single shot bench rifles?? or repeater.
Single shot - Buy a new savage single shot action- http://www.6mmbr.com/actions.html#Savage
Repeater buy a savage /stevens 200 in the cartidge you want or atleast the base size and start with that. 300 dollars
Add a Rifle Basix trigger for 85 bucks
Buy a mcgowen barrel in the configueration you want and a mcmillian stock