I WANT TO REPLACE MY OLD RUDDER AND DIVE PLANE CONFIGURATION ON MY SPORTSMAN 300 DOES ANYONE KNOW WHERE TO GET REASONABLE THRUSTER MOTORS ? HOW ABOUT MODIFYING MINN KOTA TROLLING MOTORS ?, CAN THEY BE DIELECTRICALLY FILLED FOR PRESSURE COMPENSATION?... SHAFT SEAL MOD. ? MY TARGET MAX OPERATING DEPTH WILL BE ABOUT 150 FT. ANY INFO??? THANX GUYS.