Camera adaptor for spotting scope

I'll soon have my hands on a Leica APO-Televid (82) Angled spotting scope that I won in a sweepstakes. I'm looking for an adapter to mount my EOS R to it for pictures and Leica only sells adaptors for their cameras. I was wondering if anyone might know if there is a generic adapter out there that may work. Figured I would ask here while I continue my search online. Link to the scope: https://leicacamerausa.com/82-apo-te...dy-angled.html

Thank you in advance,

Trent