Rear Firewall

Rj,
looks good:cheers: dont forget to go to home depot and get some 'intumecent' fire caulking and do the verticle seams and thw top corners. Regular seam sealer won't do. Are you gonna be running speakers, if so you should build "cans" for them as well. The area behind the sail panel visible at the top left of your photo can be handled with a piece of sheet metal that you drill through and mount your sail panels on top of, its a direct vent to the trunk.
Andrew