Yes, you're very correct. Let me add seat counts
2 class non-QS
HL7596 28/271-272
HL7597 28/271-272
HL7500 28/271-272
2 class QS
HL7700 22/272
HL7732 22/272
HL7739 24/271
HL7742 24/271 (gone)
HL7755 24/271
HL7756 24/271
3 class non-QS
HL7775 8/28/226
HL7791 8/28/226
3 class QS
HL8254 8/24/214
One more this config is coming this month which will possibly be the last ever built 772ER. Freighter and LR orders are still left, though.