Just today, I purchased a Force 75 hp outboard on ebay. The model # is 758H0B. After reading another post of this site, I'm guessing that it's a 1987 but I could use some reassurance. Also, I have two Wards Chrsyler Sea King outboards, a 6 hp(model #VWB27206,serial # 27X 20034) and a 15...