A Body Firewall Insulation, HELP! PIC's

I'm working on A Body firewall insulation and need some help. I want to make a more correct offering. I have collected a few firewall insulation sets and need some help identifying the pieces and the years they are used on. I could also use any pictures showing the firewall in the car. Prefer OEM insulation pictures.

First I have 2 of the large Non A/C pieces. The top one I have marked 74 AC. IF this is an AC then it's probably 73-74. 75-76 used a rubber covered shoddy type insulation. 67-72 A body A/C consists of 4 smaller pieces.

Second are the 3 different pieces that go over the the brake pedal brackets. The top I think is early. It has just a round hole (anyone know what goes thru that hole) and is missing the perfed corner in the upper right.
The middle is later that the first. It has the perfed corner (anyone know what that perf would be for) and the round hole is now teardrop (anyone know why).
The bottom again is marked 74 so I'm assuming 73-74. Similar to the middle except the perfed part on the lower left is different.

Lastly are the pieces that go above the kickpanels. Anyone have a picture of these installed in the car? They are marked DRVR and PASS.

Thanks! Jim Fillmore - Detroit Muscle Technologies