Quick update:
I fully recovered from Covid-19 now (I recovered quite fast - except that my sleep time increased from 5 - 6 hours to 9 - 10 hours, but that's now back to normal as well).
I also hired two more guys who help with the assembly of other items in the shop (Retrodes, SNES / MD games, etc.) so I finally have a lot more time again to work on everything else including Pyras in the shop.
The room is now finally fully setup (all shelves are setup and parts are sorted), so I wil continue Pyra assembly. These are still the remaining old cases, but I'd love to move on as fast as possible.