Here's a breakdown of 1973 production numbers. My best guess - "a couple" are still left
911T Coupe/Targa RoW: 3,239
911T Coupe/Targa USA (MFI): 1,926
911T Coupe/Targa CIS: 3,092
911T sporto Row: 197
911T sporto USA (MFI): 149
911T sporto CIS: 202
911E Coupe/Targa: 2,125
911E sporto: 319
911S Coupe/Targa: 2,231
911S sporto: 136
911RS Coupe: 1,550