what would these do? i think this is going a bit too far with netherite stuff

More storage and fire/blast proof? If you're trying to stay unique, it's kinda already covered by a netherite chest in Expanded Storage (https://www.curseforge.com/minecraft/mc-mods/expanded-storage-fabric).
It has something like 25 rows of slots.

maybe! im trying to stay with the vanilla feeling of the game, and i feel like that is kinda pushing it a little too far.

Doesnt fit in with the rest of the mod