Not long ago I acquired a close to new condition Mauser ES350B for $125.00. Sounds almost too good to be true (and it is), because missing was the complete stock, bolt, and removable front sight blade. How this came to be is anybody's guess. Reminds me of stories I heard over the years of "estate sale" arms, where rifles were found/sold taken apart...often with components going in different directions and likely never to meet again. What really irked me was only a few months prior, I saw another 350B in a backpack, walking through a local collector show. It looked great until the owner took it out and handed it to me. Then I noticed it had two sets of drilled & tapped holes on the barrel, a missing rear sight and a big chip out of the black plastic buttplate at the toe. Otherwise, the stock was beautiful. Still, would have bought it for the $350.00 seller was asking until I spotted the final indignity. Some dufus had basically ground and bent the hell out of the bolt handle and notched the stock so it would fit closer to the side...all to accommodate a POS scope rig clamped to the receiver grooves. I could take no more, so away it went.
WG96, your rifle, though modified after-the fact with the auxiliary scope mounts and bent bolt/notched stock, etc. should have no disadvantage as to accuracy. Looks like some previous owner enjoyed using it and so should you. If you take it out to the range, would like to hear your appraisal of how well it shoots...which is what it was made for.