MERC BIGFOOT 9.9

[P.Mansfield]

I WANT TO CONVERT MY 1999 MERC BIGFOOT 9.9HP TO 15 HP. WHAT PARTS DO I NEED? WHERE IS A GOOD SOURCE?? DEALER I BOUGHT BOAT AND MOTOR FROM WANTS ALMOST $300 PARTS AND LABOR! SEEMS LIKE AN AWLFUL LOT OF $$ TO ME. IT CANT BE THAT HARD!