I have a 1996 40 hp force. I just got the great news that a ring broke and scored the wall of my bottom cylinder. So I guess I am going to get it bored and try to re build it. They said it looks like it needs to be bored 20 over, not sure though. So my question is how hard is it to re build these motors. And where is the best place to get a rebuild kit with everything that I will need. Thanks for any info.