MGMorden,
When you say "mis-matched" I presume you mean receiver and bolt are non-matching serial numbers. If that's the case, and the stock is cut, too, I think the transformation to a sporter in 35 Whelan is an Excellent idea.
Modify the bolt handle. Put on a new stock and new barrel. Drill and tap for scope mount, or maybe receiver sight. Makes one heck of a good hunting rifle in my mind!
Bolt work, barrel, and stock do add up to some potentially serious cash outlay (not to mention putting a scope on it), but the result could be a truly nice hunting rig. :grin: