Using the dimensions for a 5kw Tesla module it appears at least 6 would fit in the frunk, it may be possible to use a BMS from Ev West as they have a ton of xp with Tesla modules.
Okay I know it seems ludicrous but hear me out. Wpuld it be possible to put the drivetrain and other creature comforts into a Pontiac Fiero? The base hp is similar to what the Fiero had to start with and one could make their own cells from Tesla ones so it might be possible to up the battery...