I liked the Drilling. Bought one myself (Krieghoff Trumf 9,3 x72 and 2x 12 guage), it came with a Nickols and Zeiss scope. Even took a deer with it this season.
Regarding your scope, probably $400-800 for the scope and if it comes with the drilling $2000 would be fair. Kreighoff's command more value than Sauer drillings.
That other rifle, it is a MS? Or a K98 conversion with the full length Barvarian stock? I have an MCA MS in 30-06, also a nice rifle. If I just like hunting arms I would be set, the problem is I like nice hunting arms and milsups.