I just learned about a website named OFFERUP.COM and I bought 2 outboards and a boat this week. 1 outboard was the best 1958 Evinrude 35hp Lark survivor I have ever seen and it cost me $300.00 with control box, shifter, fuel tank and original owners manual from originals nephew.I also got the (E) emblem for the cowl and I can not believe the plastic emblems have no cracks and still have the bright colors. For those that have never used Offerup.com you just go to the website and put in the keywords of the item you want to buy. The one down side of the site is it always shows only a 10 mile radius and I had to go in and click Max distance after every search and even then it only goes to 30 mile radius. Other option to get more distance was to go in and change the location from (my location) to a nearby city. I hope this helps you guys out on future searches.
commando: see photos of control box & solenoid box that would go with your engine. The solenoid box is mounted in the rear of my boat as my engine is setup as a tiller steer. The motor didn't come that way, but I added a tiller. Your box would be slightly different anyway since it would have a keyed ignition that mounts on the dash. At least you get the idea? The harness plugs into the starboard side of the engine. Yours is an 8 pin connector where mine is a 7 pin? In 1957 you just choked to engine to kill it. Yours has the extra kill wire to ground out the ignition. You would also need the plate to mount your ignition switch in & choke button. All of this stuff is out there, just have to know where to look. I may have spare set. Just have to do some digging in all my stuff?