Homologation of 73 RS implication to 911 T/E/S?

I'm curious about mid-1970s Group 3 rules in regard to how the homologation of the 1973 RS impacted the 911 T/E/S, if at all. Given the 1973 RS was a type "911 SC" model homologated under FIA #3053 and the other 911 models were under different homologation paperwork (e.g. 911S under FIA #3005). Was it possible to weld on flares to a 911S, fit a ducktail, and all the 2.7 cylinders/pistons/MFI pump/etc. and go battle it out in Group 3? It would essentially be a 1973 RS as it would share all the trick components. Or did the fact the 911S was a type "911 S" per the aluminum chassis tag preclude this without Porsche producing a run of "911 S" with all the upgrades, or was Porsche required to produce 100 units of a type "911 S" to homologate those cars? And so on, for all 1973 911 models.

Thanks for any insight.

Ryan