5/16 aluminum tubing seems easy to shape for the air horn lines.
Likely will need to pass through here for oil cooler fan power, and air for the horns.
Task for this weekend will be to drill a hole. Not happy about this but don't see an easy way to send air. I could wrap around where the front AC condenser fan was, but much simpler to just make another pass through.
Then I can permanently install the oil cooler with the lines and won't need to tear this apart in the near future.