Absolutely lovely rifle!! You dun good, trust me!!!!! I've paid more for rifles like that WITHOUT the scope and rings. Griz1 is absolutely correct about the rings and it's almost a certainty they're after market of the era, which is just fine. Last I checked they were $750 and that was several years ago. I'm confident now they're over a grand and they won't look right. Two rifles I have came with newly made rings and they look new...and completely out of place on vintage rifles. You have the originals and that's uncommon. I believe you'll love that scope. Elevation adjustments are in the scope but you'll have to adjust the windage in the base and more than likely the rear base. Maybe both are drift adjustable but usually it's in the rear base.
When you get it remove the barreled action from the receiver and post pictures of the proof marks and I can hopefully tell you quite a bit about it.
Ahhh, just remembered, Hensoldt is the maker of the scope. They have advanced considerably since their days of making rifle scopes and microscopes. Wetzlar is the town/city where it was made.
Edit #2: It's most certainly German and I am equally certain it's pre-war. Another thing, you will want to slug the bore to be absolutely certain it's 8 X 57IS and not 8 X 57I. The "IS" will be .323 groove diameter and the "I" will be .318 groove diameter. The change came in 1905 with the German military. Sporting rifles with the .318 groove diameter will be found up to WWII.