Hey Hex,
Sorry for not getting back to you on the PM. Haven't been on here to much lately. Been building my second oven. But it looks like
CarWiz took care of your questions. If you have any further questions, you can e-mail me for a more timely response. For some reason when I read a PM it don't always go away as being read and I just assume that it is the same PM's. Gotta check them more often.
As for the fuses, I put those in line for the lights, fan & Controller, just in case of a short. The rest of it is protected with the breaker in the fuse box for the shop.
The Black and gray wires coming in probably should have been a black, red and white with green ground.
Your controller will most likely be different then mine, as mine is a Berger-Coleman. More for a Plastics Coloring Company in our area.
If you need to get a contactor or elements, this post has some info.
ready for oven to be wired