last night Kriya helped me shoot on the firewall recess after I sealed up the flanges with 3M fire barrier, then I ran a bead in the gaps. I let it dry overnight and then today reinstalled the battery box, and a couple of things that I'd removed on the cabin side for access. Installed the second ANR 60 amp fuse that finally came in from B&C on backorder. Also added nut plates to the lower flange of the firewall. The plans are pretty bare of details here, but I elected to go with 4 evenly spaced #8 nut plates on each lower flange for attaching the cowl, and 4 additional nut plated in the center area for future installation of an outlet ramp a la Dan Horton to increase exit air velocity and reduce turbulence of the cooling air in the lower cowling. Permanently installed the engine mount by torquing all -6 bolts/castle nuts to 160-190 inch lbs and installing cotter pins. Started installing adel clamps for battery cables etc.