I am in the process of restoring my grandfathers' IHC dairy equipment and would like to find the optional tall water hopper extension that was available for LA/LB 1.5-2.5 hp engines used to operate a milk cooler. It would be approx. 19.5 inches tall. Does anyone know of an area that these attachments might have been common. I would pay good money for one and offer a finders fee.