Okay, installed the new braided stainless line and vent hose yesterday. Keep in mind that the air line listed here is being used with the most current PacBrake part# C10382 which has the 1/8" MPT threaded inlet on the bottom rather than on the side like the original unit. This configuration uses a shorter air line than the old PacBrake. In addition to replacing the air line, associated fittings, and vent house, I also replaced the solenoid since it was rusted up like the original hose and fittings. Part numbers/links below.
PacBrake solenoid part # C10612. Part # C10611 is the same solenoid without the vent hardware on top. I bought from MME since it already had the correct plug on it. If you buy it from PacBrake I believe no plug is included.
Adapter at the solenoid side of the air line is male 1/4" mpt to male -4AN.
Found here
Adapter at the actuator on the Pacbrake is male 1/8" mpt to male -4AN.
Found here
Air line is 12" long with both ends female -4AN with one end 90 degree.
Found here
Vent line is 1/8" I.D. hose. I used high temp silicon hose. I bought the 3mm wall thickness hose.
Found here