steering quadrant

I am in the process of getting a under deck pelagic auto pilot. Have to build a tiller arm, they do not seem to be an over counter purchase and was hoping someone has done the same,where it came from and size. I have found edsonmarine and jefa. I will do my own measure of the tiller post...

Hey all, I posted about this before the hacking incident and figured that I'd repost, with updated query. I am having to reglass one of the steering sheeve plates that detached from the hull and I figure while I'm at it, I'll add quadrant stops for the wheel steering. They should have been...