I have this 1975 evinrude that runs fine. For tournaments, I need my control box to have a kill switch. I need help on finding a used control box, or shifter or throttle control, I'm not really sure on what it's called, that has a kill switch. I need a whole new one because it's wearing out a little. I also don't want it to be electric. The new ones are like 300 and I don't want to spend that much. I would be interested in buying one from you guys, or you could just help me find one. Thanks..