Have been working through different scenarios for routing of the AC hoses down the co-pilot side. Purchase a variety of grommets and snap bushings from ACS and finally settled on a combination that fits the holes. I wanted to run the hoses through the top two holes in the F-1004 and F1-005 spar bulkheads, but there would not be very much material left at the top if I were to enlarge the existing top hole. Opted to move everything down and drill two new lower holes for wires in the spar bulkheads. The F-1034 rear seat back bulkheads are pretty thin and although they already have large holes in them, I needed to enlarge two of them for the hoses. I opted to go ahead and make a doubler for this location. Will still need to clean up with some zip tie mounts, but this is worked out enough to let me proceed.