Got a lot done on the evaporator. With the lower bulkhead cut and the upper bulkhead at least fitted, I was able to locate the upper bolt holes for the evaporator to baggage bulkhead. This locks in the final position of everything and it all fits well. I also located and drilled the Airflow System intake grill, and temporarily installed the air vents - looks pretty sweet.

Now I'm also able to move forward with the final mounting of the evaporator. I started with match drilling the three holes on each side that attach to the longeron support plates. Then I double checked the center of everything and marked the holes in the support tubing for the main slotted holes. Then moved over to the drill press to drill the four holes. Reinstalled and double checked everything. Trial fit the relay box and realized that it makes sense to utilize one of the evaporator bolts to also support the relay. Happy with the orientation of the relay, I disassembled everything again and drilled the remaining holes for the relay to the support frame on the drill press. Reassembled everything and the fit up was good. I did elect to put a local ground to the support frame adjacent to the relay box - it'll just be for the relay box and fan.

Before final assembly, I also had to re-install, hopefully for the last time, the battery/bellcrank assembly. I wanted to install a nice grounding stud while I had it apart. Put in a 1/4" stud per AC43-13 with aluminum washers and steel lock washers. Need to get some low-profile nuts.

With the battery tray re-installed, torqued and marked, I moved on to the final assembly of the evaporator. Riveted the longeron support plates in place, then installed the tray with the final hardware and torqued. Then installed the evaporator, relay box and dryer. I opted not to prime any of the AC hardware. It's 6061 and doesn't really need it.

Went ahead and ran wires for the relays and connections to the pressure switch and temp switch. Nice to be doing wiring. Went ahead and made up the harness that will connect to the plug supplied by Airflow Systems and run the wires to the front.

2/12: temporarily ran the rear seat shoulder harness cables just to confirm everything clears and I wasn't happy with how close the top of the dryer is to the cable run. Flipping the dryer bracket to the bottom of the evaporator tray allows me to lower it a bit, but the high pressure service port limits how much. We'll see how it looks when the hoses are run.