Pre64 M70 in 30-06, 270, 243 or 257. A Ruger #1 in any of those + 7mm Mauser (I think they made some it that cal.). For a lever gun, I'd go for a 50's or 60's vintage Savage 99 in 300Savage or maybe 250Savage. Very common, very nice and accurate too. Ammo not all that uncommon. Easy on the shoulder, easy to 'scope. Buying, restocking, blueing, etc a Win70 will put the budget up into a bracket where you could probably be buying a decent Mauser or Mannlicher sporter, my first pick. But the ammo situation probably wouldn't fit the criteria.
