Mike,
EDITED.....
The early cars with the chrome bumpers mounted the front parking/signal lights into the chrome bumper housing.
when US DOT mandated the impact rubber bumper, the front valance stampings were modified to incorporate separate light pods which were welded into the structure. The actual light assemblies were the same for the chrome bumper and light pods.
most US Panteras that swap back to EYEBROW chrome bumpers just retain the pods for the signal lights.
if the original chrome bumpers are selected then the pods would be removed and filled as in your current car
I have for sale the used pods in the photo. They were removed from a front valance, being cut off at their meeting point and I believe could successfully be grafted back onto your valance.
It is possible the vendors have new old stock light pods, also.
or you can devise an alternate approach for your signal/running lights.
Larry