[Bailey]

David,
I just wrapped up puting the car back together..I removed everything that was bolted to the rear firewall, it's plenty sturdy, but having those backing plates would certainly strengthen things. We'' see how she does on the track, they may go back in. Measure twice, cut once. I found it a little tricky getting all the trim plates lined up, but patience is your best friend.
Cheers,
Richard