From their respective home pages, each in 300wm
Win 70 fwt - 7lbs-4oz
Montana 6lbs-13oz
A Win 70 fwt in 300wm is only 7 oz heavier than a Kimber Montana. If you swap out for an Edge or Banser, I'm betting you're looking at equal weight for both, which is something I would not have guessed. Someone more knowledgeable may know, but I'm guessing the factory wood stock is around a 1/2lb heavier. Your Lilja #2 will add a few ounces, but if you go blind mag with the Win 70, you're probably close to even again.
Personally, I'd start searching GB for an older Win 70 with the original trigger.
