Agreed. The only people missing from that era are 60's Jean, Mimic, Changeling, Erik the Red,60's Beast and 60's Angel. Beast and Angel have had better looks and I personally would prefer a John Byrne/ George Perez Beast redo and an Archangel red costume Angel with Backstreet Boys hair from the early 00's than those two costumes. I'd think we could get away with a 60's Jean in a Shiar wave since she wore that costume during the Dark Phoenix Saga. Also, Erik the red was a Shiar operative (maybe with an alternate Scott head). Then maybe a Shiar Warrior, Polaris, Gladiator, Lilandra/Deathbird.
Beast:
Marvel Girl
Erik the Red:
Polaris: