1. Drilled the lower shelf of the main avionics rack to the aircraft structure and checked all clearances and assembly considerations. I decided that installing nutplates on the bottom side of the aircraft's z-channel would be way too time-consuming because of the proposed location, so I will just use #8 screws and nyloc nuts to attach the forward edge of the shelf. 2. Installed nutplates on the support bars and aft attach angle. 3. Sanded, primed, and painted the lower shelf. (Not shown) 4. Measured the distance between the transponder antenna and transponder, then cut a 30" length of my nice new coax cable. Prepped both ends, then installed a BNC connector on one end. The other end will get a connector after I route the cable. (By the way, the coax I'm using is a super-duper MILSPEC low-loss coax called Heliax/Commscope FSJ1-50A Superflex. It's fairly stiff but very flexible -- more so than RG-400 -- and it keeps whatever bends you put into it, which is great when you install it It's really high-quality, commercial stuff, having essentially has no loss over the short runs you'll find in an RV-sized airplane. Best of all, the process of installing the BNC connectors is stupid-easy compared to the laborious process you have to use with normal coax cable. I love this stuff! 5. When I moved to my new house a few years ago, somehow I lost the sidewall of the lower baggage compartment. I have no idea where it went, but it isn't with the rest of the similar parts. So today, I got its replacement from Vans. If you ever find a forlorn baggage wall out there in the world, it might be mine. 6. Finished installing the forward GEA24 rack into the floor of the hellhole. As I suspected, I had to use a #6 self-tapping screw on the right-forward hole, The rack is now nice and secure. (Not shown).