Newbie checking out a 98k for my first Mauser. Is this a fake matching 98k?

Link to the rifle : (links to ongoing auctions/ads not permitted here)

The year of production and other marks around it on the receiver seems to have been grounded off but the buttstock with the bolt disassembly hole thingy seems to be in the late war configuration.
The floor plate also doesn't seem to be the kriegsmodell floor plate and it doesn't seem to fit well with the stock, so I'm wondering if this is a fake all matching 98k. (maybe a russian capture that was re-serialized with the electropencil markings grounded off?)

This is a post war Czech 98k with the small postwar lion proofs on the barrel and receiver and the large Czech lion crest ground off the top.
The only Nazi part I can see on it is the trigger guard. Might make an o.k. shooter for about $200 or so.