That mount looks like it is a quick detatch from a tripod.
Which is not going to be able to take much recial, if you coudl even buy/make one to fit a scope.
There are scope mounting rings, to add things like torches. One of those may be able to take something likeone of the round bodied activity type cameras?
Or, if you have to use this cam, then get a set of cheaper scope rings, backwards. With the mount foot above the scope. Then mount a camera thread into the foot.
Possonly use the other ring to tie-warp the front of the cam too?