Yeah Im not going to get into brazing, just because I do not think this frame is worth repainting. I will probally build a new rig over the winter. So I will stick with a shot reach brake mounted normally and then a longer reach brake with a Metal plate mounted behind that.

You could drill into the side of that alloy part and then makes some threads and put one of those little hex screws through it (like the adjusters found on bmx style levers) to hold the cable housing there.
Also there was another flaw in my gyro cable system. On the metal bars the parts holding the bottom barrel adjusters they where attached to my stem but they would slip no matter how much I tightened them. I know there is a way I could get around this but It was getting to be to much..