If you're used to view everything upside down and backwards I assume that you mostly use a view camera. I assume you're used to composing, focusing on the ground glass before loading the film and make an exposure. In such case simply remove the Leica's back put a ground glass at the film plane and lock the shutter open. After you're done you can load the film and make an exposure. That way you can frame your shot a lot more accurate than you can with the Leica viewfinder.
Originally Posted by jnanian
PS: Well I don't know if you could mount the Leica on tripod without the back or how to load film without removing it from the tripod.