I'm looking at a 2005 Sea Pro 180CC, can't decide which powerplant to get. Standard from this dealer is a 90hp Johnson 2 stroke, but I can upgrade it to a 115 Johnson 2 stroke for $1300, or to a 90hp E-tec or a Johnson 4 stroke for $1800. I plan to use it in fresh and salt water for fishing or pulling the kids around on the tube.<br /><br />Thanks for the help!