I've got a 3 main bearing 1800 in my MGA and was thinking about adding a Moss supercharger. I noticed that they do not provide a kit for 3 main engines. I assume this is that they do not have a set of the right water pumps and pulleys. They do have kits for all 3 main MGA engines. Has anyone found the right parts to cobble together a drive set for 3 main engines?