Hello! First time pontoon owner (almost!). Have 2 kids...(3&6)...and think the 22 SSRX looks like a good layout. Looking at one with a Yamaha 115, and express tube. We are going to be on a decent size lake (40km shoreline)...and will probably use it for cruising, fishing, and tubing. Thoughts about what I should be looking for? Is this engine the right one? Etc...