I own a 1982 Catalina 30 - Mark 1. She has a universal 11 H/P Model # 5411 ( serial # 312287 ) with a westerbeke fresh water cooling kit. The pump for this kit is westerbeke part number 303069 ( old part # 300121). I recently had the engine rebuilt but this pump went missing. The price for a new one is $700.00 plus. Are there any less expensive alternatives?? LOL Remaining somewhat hopeful. Thank you, David