I just bought a Las Vegas Tri-hull(unsure of year) with a 150 Mercury Engine(also unsure of year but looks to be an 1990's). It needs a new ignition, and the wiring from the helm to the engine is all "ghetto rigged". I was wondering, where can i get an ignition and are they one size fits all or do i have to find out the correct type? Also any hints to redoing the wiring?