HVAC Bulkhead Routing

[Mkelcy]

I'm trying to figure out how to route the HVAC lines in my '68 Camaro project. I'm using a VA Gen II Compac unit with the DSE bracket. I'd like to put a 4 way bulkhead plate where the old blower motor was, and that's pretty easy. What's stumping me is how to run lines from the bulkhead plate - which is in the cowl air plenum - to the Compac unit, which is in the interior of the car.

Pictures will help. This first shot shows where the bulkhead plate will be mounted - the bulkead will be mounted through the hole where you can see the 2 o'clock to 7 o'clock bluish portion of the blockoff plate. The large hole is sealed to and covered by the kick panel.



Here's the interior of the car.



I've got good access to the area above and to the rear of the bracket. I was thinking about using 3-10AN and 1-6AN 90 degree bulkhead connectors for the two heater lines and the high and low pressure AC lines, and them routing them to the Gen II unit, but I think I may be over complicating it.

My concerns are getting the lines through the interior bulkhead, while avoiding chafing the lines and sealing them from air leakage.

Any thoughts?