Did a little prep work throughout the week and then today finally got the wife to help me rivet the bottom skins together and to the center bulkhead spars. Moved on to countersinking the seat pans and associated pieces. 4/22: permanently installed and torqued bolts for the forward seat support bulkhead parts. Had my first passenger as I was comfortable letting Everett sit in the back seat. Crappy weather today so didn't get to prime.