I designed and printed 2 scope base options for the Savage Rascal.
https://www.thingiverse.com/thing:5986995
https://www.thingiverse.com/thing:5986995


That's a cool idea! Have you thought about selling them?
Cabela's told me the Savage Rascal bases were proprietary and the only ones available.
The spacing was such that scope selection make it essential to limit the length taken up by the internals.
Weaver had a long base similar to the one produced above, cheaper, and they would only give me a gift card when returned.