Screw one 1/2-inch female brass air coupler into the air compressor's outlet valve. It should be sticking straight out from the front of your air compressor.
Lay the 10-foot pipe on the floor. Glue a 90-degree elbow on both ends. Cut the pipe in half. Glue a "T" coupler in the middle. Glue the pipe back together using the "T" as the coupler.
Cut three pieces of pipe at 36-inches. Glue a 3/4 to 1/2-inch threaded adapter to the ends of all three pieces. Screw a female 1/2-inch brass air hose coupler to each of the adapters. Glue the other ends of the pipe onto the 10-foot pipe onto both ends and the "T" in the middle. You should be looking at a "m' shape on the floor.
Lay the assembly in the rafters with the feeder lines extending vertically. Hook individual coil hoses to the ends of the brass air hose couplers.
Hook a 24-inch coil hose to the front of the air compressor. Hook the other end to the line coming down from the rafters. Turn on the compressor to fill the line with air.