Rivet Day! Firewall complete! The job was a little unusual in that there was a mix of A4 and A5 rivets and the assembly/riveting had to be accomplished in a fairly specific order or you could end up not being able to reach some of the rivets after riveting another section. I thought it through nearly perfectly ... but still had to drill out 2 rivets I'd accidentally pulled too soon.
The worst part of the job was the requirement to hand pull 38 of the A5 rivets (yeah, I counted them all!) because of the tight space they were in.
I have now completed, at some level, the bottom parts of the fuselage that connect all the way from the tail to the firewall - feels like progress.
Firewall partially reassembled during riveting. The center siffener rivets all hand pulled.
Completed firewall next to the obligatory Bad Clown pic back up in the garage.