Sure, but they’re making one model and they are probably building the initial line before parallelizing and adding parts buffers, etc.
They have a minimally viable production so they know the production line front to back. They’ll scale line parallelization and part buffering from there, which...
I was thinking of something similar, and I have a very similar commute. That said, for weight reduction, less drag, and higher solar efficiency, I am building a portable system with in my backyard that charges a battery bank in my garage.
You likely don’t need permits if it’s not tied to you...