Thanks for looking at that!
Also, I wonder if the hardness modifies how fast the moho mines or w/e mine things? That would probably be the simplest way to get it working properly with all the ores. Because then you still have the same ore chunk density of various items, but they just mine a little slower, like the ores that they came from.
The deep core chunks (that can be turned into anything) already have variable outputs based on ore rarity. So not sure if that's manually created or that comes from somewhere either, but I assume that would be another thing needed from a compatibility patch.
Sorry I'm not quite more helpful, I haven't played with your mods or deep core mining before so it's all a bit conjecture for me :D