There has been a cottage industry in the M-mount conversion since the lens and the M3 were first available. For whatever reasons, many Leica owners had this supposedly "soft" lens converted to their M3's, because they wanted/needed the speed that was not easily available in any other lens.
I've heard of the mount being put on a Canon P, but question the rangefinder accuracy in this combination. I don't think the M-s, any of them, have ever been converted to the outer breech mount. I don't know what surgery would be necessary, but it would, if succesful change the M-mount to a LTM/Canon breech M-series. I can't help but think the conversion might well cost more than conversion of the lens, and would possibly not be reversible.
I'm content using my 0.95 on my 7s, and several of my LTM Canon's on my M3 with the adapters. Considering the costs, it seems much more sensible to just buy the camera to go with the lens. That's especially true since the reliability of the Canon 7-series is quitegood, in my experience with several of them.
Harry