Permanently Disable Bluetooth on MacMini 2019

I realize this was asked back in 2014 with this question, but hardware and software has changed a lot over the last 5 years.

Here's the specifics of my situation:

• We haven't purchased the device yet, that is contingent on the answer to this question, essentially.
• We are looking at putting a Mac Mini into an environment that requires we disable all wireless communications to/from the device.
• Our devices have firmware passwords and FileVault 2 enabled.
• Apple activates Bluetooth automatically on all devices before the drive is unlocked to ensure users can connect a Bluetooth keyboard to unlock the drive.
• We need to prevent the Bluetooth from ever coming on in the environment we want to put it in.

Here's the million $ question: Is there any way to prevent Bluetooth from ever coming on, even before the drive is unlocked and policies are enforced?

In a dream world, we would just order a model without a BT card at all, but I don't know how feasible that is.