I completed the few errands that were left tonight. One thing that I had missed were the four bolt holes (both side) in the bottom firewall corner on the engine bracket !
One thing I noticed was this thick angle does not bend. It is installed at an angle but not exactly the bracket angle. Therefore there is a small gap for the 2 holes closer to the firewall, and this is exactly the same on both sides. In fact, the closest hole has a 1/8" space and the second has 1/16" . I will put a spacer under as closer you get to the firewall, that bracket has a weld in the corner preventing the bracket corner bottom tab to follow the angle.
At any rate, next time I will be bolting & riveting and then on skinning ! I hope to have the under skin finished by mid-November