I have a used set of bases, claw mounts and 26mm rings for a Sauer 202 with screw fitting receiver. They are EAW so the quality is good. I can change the rings for 34 mm if required. £75 posted
I also have again by EAW a spare set of the claw mounts and depending on the ring requirement a couple of spare sets of rings. Sorry no 30mm. These will be £30 for the rings and £30 for the claw mounts.
If you are interested or need some further info please PM me