Hi I want to take a 2007 115 E-Tec Evinrude from my old 17.5 ft outboard and put it on a 2004 LX3 Suncatcher. How hard is this, I am puzzeled by the steering on the pontoon, it has two hoses with oil. It would have had a Yamaha motor orginally, how do I convert this. Thanks. Mel