You're definitely correct on the 32-bit dynamic range side of things, as that's more dynamic range than a human can perceive.
However I feel like I read a little while ago, that a standard record industry 15 IPS reel-to-reel master tape (on some high quality tape formulation, I imagine) sits somewhere between 96khz and 192khz equivalent sample rate. Though there is every chance it was from Reddit or something. Do you happen to know if that stacks up?