Busnell Custom rimfire scope mount?

[MP-44]

I have a Bushnell Custom rimfire scope from the 70s that is missing the rail mount for .22 tip off grooves. Is there a source for these?

Like the mounts on this scope

 

[Coop45]

Will these work? clicky

 

[MP-44]

No, the scope has a flat base that protrudes out from the tube.

Thanks for the effort though.