German military parts were stamped with something called waffenamts that identify the manufacturer and sometimes even years of production and indicate German military acceptance of the part (codes changed for some manufacturers during the war).
http://www.eaglerelics.com/waffenamt-codes/ WaA214 was used by several firms depending on the year
These are generally receiver codes but some manufacturers such as Oberndorf made most if not all of their parts depending on the year of manufacture
http://mauser98k.internetdsl.pl/kodyen.html
As others indicate, that is not an original military or even duffel cut stock and is a post war, probably american stock. Prior to the 1968 GCA, importer information was not required on imports so without provenance, it is impossible to tell whether GI bringback, trophy, or simply an imported parts rifle.
Not clear from your pictures but often trigger bows were altered (thinned, polished, whatever) of the trigger guard, triggers were replaced or jiggered with along with safeties (often to make an inferior light one stage, sometimes, unsafe trigger). These things were commonly done to emulate sporter rifles and reduce weight.
A D&T receiver (as it appears from your pictures) is generally not a candidate for restoration without jumping through a fair number of hoops and the costs are probably prohibitive unless you want to spend $400-600 to make probably an inferior copy worth less than a Mitchell's Mauser (about $400-500). A restoration might not shoot as well as what you have already if the current setup was carefully put together.
Numrich aka gunparts.com did have some replica k98 stocks, but then you will need a proper waffenamt barrel, handguard, buttplate, screws, barrel bands, screws, sights, etc. Real k98 stocks are now north of $200 or more and many of the cheaper ones have issues. The cost of restoration is much greater now that the imports of Eastern European war reserve stores has mostly disappeared. A mismatched parts rifle might be a hoot to shoot in a military rifle contest and if accurized (gunboards has a sticky post in their mauser section pertaining to such as russian capture Mausers) can be pretty good.
If I would consider anything with the rifle, it would be to fully update it as a sporter if it is accurate--the stock has a gorgeous figure, replacement with either a Timney (or Bold if they are still around) trigger, and depending on how well it shoots, maybe a new barrel and finish with good glass might be in order.
Unlike some, you do not have to go whole hog and use a grinder to obliterate the past but a tasteful acknowledgment of its military past is not impossible to preserve if you want a uniform refinish of the rifle.
I picked up a 1930s Mauser model 98, 8mm rifle. As I inspected the gun I realized it had tiny stamps on it, the closer I looked I realized these weren’t just any stamps.. these are stamps of Nazi/Germany, one stamp is the eagle with the swastika, the others are the Nazi eagle with numbers under them, and i almost forgot NO IMPORT STAMP ON THIS FIREARM!!
