Ford Australia provides that service for Australian made Fords. It even tells you how many other vehicles were made with the same specification ie 1 of 20 etc etc.
Pb
Steve, have a look at a HQ steering cover plate, they have a similar set up but I think its slightly larger than the Avanti one. It might cover the hole with some adjustment.
Peter
I thought the hole was there for fuel lines but it never got used. I guess it was used as a vent for the tank but ended up rusting the tank out and the rear seat.
I would think a watertight vent would be a good idea.
Pb
I did many years ago, it seemed fine. Unfortunately the completed dash is still sitting under my bed waiting installation but the pad went on quite well. Certainly less flexible than the new ones.
Pb
Loosen the 6 bolts where the hinge attaches to the door and slide it back. Hopefully there is enough movement left in the captive nuts to get the door where you need it.
Pb