1/2" ball end-mill on order (McMaster) to to mill a pocket in the brake master cylinder directly above the mounting holes

I am going to Redux the aft bracket to the cable.
The front bracket needs to be assembled in place.
Again I will turn off some material from the nuts to save a little weight, then will Redux the aft nut to the cable.
The forward nut use the stainless lock washer I bored to the proper size. The supplied washer was huge and McMaster didn't sell the right size. I purchased the next smaller size and bored it.

Y13-12-12