TI makes buck-boost converters that may provide a solution for the 48V conundrum. Digikey also sells some nifty pre-built modules that may work.
I agree it would be nice to have a harware solution for the dry wipe issue. Issuing a voice command after enabeling FSD sometimes isn't fast enough...
I wonder what type of control module failed? A module responsible for charging? Obviousily, a module that allows you to drive 100ft from your driveway before the truck realizes something is wrong.