Could you have perhaps put the SS2 pump into the handle of the Sharp Shooter 2? That way, the curve of the pump would fit and then you could have used the empty barrel space with the SS2 barrel, that could have helped keep it small, but I'm not sure if all the internals would fit since I don't have either gun to try myself. Good job though, I love integrations
Since this is your first post (and this is my third), I'm not going to be very harsh but please try and check your spelling and grammer before you post. It isn't very hard and it goes a long way as far as how people respond to your posts.