Hi BNR B
You could probably look at building a template via SU24 with all of the objects. You might be able to create via XLS and upload. If possible to do that you can then copy the objects from TOBJ table (might be easier to download existing template first to see the format).
After that you can then go into PFCG and import the objects from the template. I haven't tried it to see how easy it is to create your own authorisation templates.
Regards
Colleen