I am finding gas welding a little easier now, however I wouldn't say I am good at it yet. The following pictures show the completed rudder/brake pedals. The plans call for the brake master cylinders to be mounted on the firewall and are actuated by a cable via a bell crank (also mounted on the firewall).
Most folks these days are opting to mount the master cylinders up front to make for extra room for O-320 installation.
The design of the linkages are my own, however they are inspired by examples of others I have seen on the web.
Here is the pedal in the neutral position (rudder not retracted).
And here is the position of the rudder pedal with the rudder in the fully extended position and just before any brake pressure is applied.
And finally the full rudder and brake pressure position.