Trimmed the fiberfrax to size leaving 1/8" between the firewall flanges and the fiberfrax. Trimmed the recess fiberfrax flanges.
Tested the installation of the EYEBALL FIREWALL FITTING- SS PRESSURE PLATE - STEEL TTP. Cutting the steel foil with a cutter once squeezed between the eyeball flanges is pretty easy. Drilling holes for the screws with #30 is not enough, better use a #21 through the eyeball flange
End result is very nice, need to replicate on the final fitting.
Ordered the fire barrier 2000 sealant.