Originality, condition & price! The drilled receiver largely knocks out collector value except as "placeholder". That said with qualifications. That stock IF it is original, itself quite valuable. The SN/year of the rifle suggests it's original to the rifle vintage. The most common stock alterations are modification to accommodate low scope bolt handle and recoil pad!
First thing, to be sure the stock you're viewing IS an original Super Grade. An exemplar below of such. If the stock is original and the rifle "original' but for top mount holes, value is still there as presumably viewing a handsome stock rifle. Overshadowed by the Model 70, but quite adequate in its own right.
Super Grade bottom metal in pix along with original pistol grip cap below. Original stock pads those times, uncommon but 'possible'. If so & original, it's hardened & falling apart! If red, showing "Winchester" name, maybe OK replacement - needing to check length of pull. Should be approx 13.5" ~. Sling swivels as to be viewed below "deluxe. Bolt handle shown below, exemplary of original. But sowing unaltered and stock as unaltered - no handle cut! The ordinary butt plate identical to the steel version of he Model 70.
Hope this gives you 'flavor of correctness' in measly five photos! But here, 'essence'.
Best & Good Luck!
John