I've got a guy who needs to replace the wet end on his 2 speed pump from a '98 Sundance Marin. It's a 2.5hp "Theramax" 2-speed 230v L56Z frame motor and it says Emerson on it, model R611863A. The Sundance pump model # is 061201932 and he thinks it is an Aqua Flow pump. What wet end will work with this pump? Thanks