I'd take the 7mm Rem over the Wby.
I'm prone to buy somebody else's mistake and fix it...I've owned some new guns, but they didn't shoot any better than "good used".
I've never rebedded the action-part of a stock. I free float the forearm to within about an inch of the front end. That part, I barely get it free between the steel and wood. Then I shim with kitchen wax paper, just thick enough in layers that a slight pull is needed to insert the shim. Trim with razor. It acts like a shock absorber on a car. Tightens groups incredibly well. Cheap.
They make little nylon insert dealies to do the same thing.
I had to do the same trick with my Weatherby Mk V, #2 profile 26" barrel in .30-'06 to make it shoot better than its original 6" groups. The bedding plus a Canjar trigger allows me to get the occasional 1/2" group.
I've always foundd that any rifle of decent manufacture, with a clean bore, with my tweaking and a "real" trigger, will shoot inside an inch.
FWIW, Art