This is not unlike my own setup actually. Honestly a burglar would spend weeks just trying to figure out what TF any of it means and where all of the wallets are and which seeds even have anything on them, and that’s literally if they managed to get ahold of everything somehow 🤣🤣
Like Satoshi said, “there’s not really any reason to ever delete old keys”…. so I never do 😆
I pity a burglar attempting to steal my funds...
BIP85, passphrases and geographically distributed multisig are not attacker friendly...
I do maintenance for a living. I've got $50 wrenches of my own.