It can be done, but it takes some work. Because the Bonne tank is a bit shorter, you'd need to get a special made seat or it would look funny. The Bonne uses 2 smaller bolts instead of 1 big one, best dealt with by making an adapter plate. I'm not sure, but the tank looks a little narrower where it fits over the frame. If that is so, it will take a bit of cutting and welding.
