I have been thinking for a while on creating a support for the two brake lines in the area of the firewall recess. I personally don't like the two brake lines hanging for such a long trait between the two clamps close to the air vent and the parking brake assembly.
I decided to use a relatively thick aluminum angle to create the support to be riveted to the F-1039D rudder pedal brace.
The angle will have also a nut plate to hold two clamps, one for each brake tube. This will allow rapid disassembly if necessary and a stable support avoiding the brake lines to rub against each other or against the rudder pedal brace.
The first attempt proved that the idea was ok, but i decided for a second design with more "beef" to rivet the brackets to the rudder pedal brace.
Final assembly will happen after replacement of the firewall recess in order to position the new steel passthrough.