Studied drawings and test fit firewall recess, center rudder support and TCW backup battery. I want to make sure I know the right orientation and figure out the best assembly order before I start final riveting of any of these.

Determined the first thing to install is the rudder bar center support. Started second guessing myself on whether or not it is okay to install the 34 ounce TCW backup battery on the support. Need to ask for technical assistance.

Identified the remaining steps and order for completing and installing the firewall recess. I plan to use pro seal to block the large holes. I may spread fire block sealant over the pro seal later. I may use the fire block sealant to seal the recess to firewall flange gap as I rivet it in place.

Researched brake line routing and considered options for support brackets.