Or you could just use Ornamentations for Hero's Forge Armor Models, which includes all of those helm models. I recently implemented it in EQEmu. You would still need to create the Ornamentation Augs, since none exist in the database yet. Alternatively, you could simply set the herosforgemodel field on an armor piece directly and it will work without needing to aug/ornament the armor piece.
Here is a screenshot of the armor, but the helms you are talking about work the same way as well. You can use the #heromodel command to see the different armor models.
Note that this only works on RoF+ clients since older clients didn't have these models for armor. Also, you need to be running the latest source code from git to use the new features.
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