Well T, I guess I have an answer for your problem. I have built three electric start kits for my 18hp Johnson’s. It seems like the Evinrude brackets are more available than the Johnson. 56/57/58 Johnson use the same bracket for the starter. Evinrude don’t have the knob for the hood. The only brackets I could find were the rudes so I had to improvise. First thing I did was take my port side rewind bracket off and built a fixture. Hopefully I can post a picture. I found an Evinrude starter bracket. Placed it in my home made fixture and cobbled up a peg for the hood. I used a small piece of angle iron and a cut off bolt for the peg and some JB weld. I took some fiddling but I managed to get it to work. I put a metal screw in to hold the new bracket so the JB weld could setup good. You might have to relocate the bolt holes that hold the starter to the bracket but that is another story.
dale
Old bracket in fixture
Finished bracket ready to go!
get’em wet….don’t let’em set!