Not many pictures to share, but a lot of work. I scuffed and cleaned all of the right flap parts and shot primer. I was almost out of primer from my original gallon, so I bought one more quart of the same Ekoprime, plus one quart of the Ekopoxy. My plan is to spray the tail cone with the Ekoprime, then I will spray the cockpit area (baggage compartment forward) with the Ekopoxy. I think one quart of each should be enough, but time will tell. I'm switching to Ekopoxy for the cockpit simply because it's a lot tougher than the Ekoprime - important in an area that will get a lot of wear. It's still a waterborne primer, so not toxic like most other epoxy primers, but it's still a two part epoxy. The downside is it means it has a pot life and the extra can't be saved once it's mixed, unlike the Ekoprime. I decided to go one shade lighter for the cockpit area - smoke grey vs charcoal grey - since the lighter color will give the feeling of slightly more room. That being said, I'm fairly certain I'm going to end up putting up side panels in the cockpit and probably cover most of the floor with carpet, so there won't be much of the primer to see in the end anyway. The other option was to prime and paint the interior and leave it at that, but I think my important passenger will want the "comfy" factor of upholstered panels and floors.
There aren't a ton of parts in the flaps, but the ribs are small and awkward to scuff, so prepping and priming took about 3 hours. At least I'm done with priming for a little while now. Unfortunately, I think the timing will work out so that I'll have to prime the bulk of the fuselage parts during the winter, which is never easy.
