Alright, finally I have some time to upload some pictures. Hoping for some feedback on my idea for a mounting bracket/plate for the Scotty #1036 plate.
To recap my gunwale is 4 inches wide and the Scotty plate is 5.5 inches wide. So it'll be hanging into my boat 1.5 inches. My original idea was to have mounting plates made the exact same size as the Scotty #1036 plate (picture attached). I made a cardboard cut out the same size as the Scotty plate and put it on my gunwale to get an idea of how it would look. Both the wife and I agreed looks a bit stupid, like "this is too big for my boat, but I'm trying to make it work."
Back to the drawing board. I thought it would look much better, and be a bit stronger I guess, to have a 45 degree bend at the end of the plate, and then where it touches the gunwale lip on the inside of the boat have another bend (45 degrees I think), and then have the metal go flush to the bottom of the lip. Sorry the picture kind of sucks I had to tape it in place to get the pics.
I plan to go with this plate. Plan is since 2 of the holes in the Scotty plate will "miss" my gunwale, I will have 2 extra bolts affixing the fabricated bracket/plate to my gunwale. You will not see these as the Scotty plate will bolt over top of it. Then where the metal ends on the bottom of the gunwale lip inside my boat to have 2 bolts there. Something like that. I'm not worried much about this stage. I'll be sure to use backing (likely thick plastic cutting board) and make it super strong.
Also, I've been asking myself WHERE on the gunwale should I mount the plate/downriggers? I know you are supposed to go as far back as possible, but I don't want the seat(s) at the rear of my boat to be in the way if I want to lean/reach out and fart with the line clip, cannon ball, or whatever. My current inclination is to mount them about a foot forward (towards the bow) from where the rear seats end. This is about 30 inches from the stern to the front of the Scotty plate. I reason if the downriggers are too close to the seat and I need to "work" on the stern side of the downrigger the seat will just be in the way and I'll end up half climbing over it. Pictures of the inside of my boat attached.