In the process of organizing small parts and inventorying what parts are missing I discovered that there were two extra holes in the dash: one small screw hole above the radio hole, and another larger hole under the radio hole that was probably used for an extra switch at some point. After making/fitting a patch for the larger hole, both holes were welded shut and ground down. Also, the lower half of the accelerator pedal hinge was welded to the floor, as original.