Second season is approaching w/ my 14' aluminum Polarkraft utility boat (semi-v), currently has a 9.8 Tohatsu, but I'd like an electric, especially for the lake where I can't use the gas motor. So it's not really for trolling per se, but noodling around when I'm tired of rowing.<br /><br />Assume a family of 4 plus gear, and transom mount (no real space up front), what numbers do I need to pay attention to when I measure the transom, to compare w/ the shaft lengths advertised for the motor? And what battery? My outboard is a pull start, so I'm only running a fishfinder plus this new electric motor. I like the small size of Cabelas 12V rechargable, but it's not in stock right now.<br /><br />Thanks for any insight.