Hello, I have a 105 horse that I would like to sell, but don't know the value. It's modle #10575 and ser#2082. I believe it to be a 1969. It's very clean, runs excellent. Seems to be all original. I've fixed a few things, and have copies of the original repair manuals. Can any one suggest what to do, or is this the wrong place to post? I appreciate any suggestions.