Here's my closer, the pedal pushrod(s);
So after much thought, I decided to utilize the bellcrank assembly on the inside of the cab. I did this by using just the actual pivoting bar the pushrods will attach to, and drilling a hole on the brake assembly, and welding on a 'leg' to the other side, to slide the pin through and hold the pivot bar in place.
When adding the pivot bar where I did, I had to cut the brake pedal assembly to create a relief for the arms to swing full motion at the top, so I took 1/8" flat steel I had and bent a radius into it to reinforce this area. This does not interfere with the return spring when being careful and trimming where needed.
Could I have just used the lower hole for the 4:1 ratio, sure, but I didnt like the angle it produced. This will be cleaner, operate better and have longevity.
I attached the diagram I used to calculate this, as per Wilwoods site:
https://shop.wilwood.com/blogs/news/...o%20of%209%3A1.