Re: Winchester model 70 XTR 338
In a word: "no". A push feed M 70 is not worth a lot in any case. By the time you fixed the bolt, magazine and got a proper barrel you would be so far upside down that you would never recover 25% of your money.
A good one (SAKO, HS, CZ) will cost $3-4K and if well cared for will probably hold value.
It's a caliber you really gotta think about owning as the first cost is only the beginning.
I used to live where you do and would be hard put to find an application needing a 338 LM...unless you just want one (which is reason enough).
Good shooting!