I cleco-ed up the parts on the firewall, turned it over and drilled the 1/8" rivet holes, 3/32" platenut rivet holes and the 2 @ 1/4" for the in-flight adjustable rudder pedals. It took a little longer because I had to keep flipping the firewall over to move clecos and then flip it back to drill from the front. But that's done now.