I have a chance to pick up a pair of 150 Evinrudes. I currently have a 115 on an 84 Grady Tournament. I would like to put a single 150 and keep the other for a spare !! Will the controls fit both motors? The 115 is an 84 and the 150's are mid 80's also. I'm going to look at them over the weekend. I'd like to hear that it would just "plug in" !! Thanks