I have questions about converting a tiller arm steering and throttle to remote steering and throttle (Mercury 9.8 110 1978). Any help is much appreciated. I believe i have found what I need to attach the remote kit Mercury 39466A1. Is there anything else I need or should know about hooking that up? Also I have steering and a cable in place. Is this an easy change over? My current motor is a 1989 Johnson 48.