Yesterday I finished the firewall. I was able to back-rivet all but eight rivets. It turned out really nice. The rivets called for in the plans are too short though.
Here is a picture of the forward side of the firewall.
And the aft side.
Here is what I used for a back-riveting bar. I just had to make sure to keep it under the rivets.
Back-riveting gives really nice results.
A close up of a rivet.
I get to start on the center section next.