Finderscope shoe

[The Mekon]

I have a Stellarvue 50mm finder that is attached by a 22mm dovetail.
I am looking for a 22mm shoe so I can switch this finder between scopes.
Most shoes seem to be the 36mm type.
Any tips on where I can obtain a 22mm shoe. Otherwise it looks like I may have to find a wider dovetail to fit the rings

[taminga16]

Chat with the blokes at your local Men's Shed, retired men have heaps of gear. Greg.