I recently got a Master Everdrive and used my copy of JP for the case and shell which means I have a spare PCB lying around that might come in for someone else.
The cartridge contacts are as good as new so this might come in handy for a collector with a copy of JP that's seen better days or even for someone who has an EEPROM burner and a soldering iron and wants to use the PCB to fix up another game.
Free to anyone on here or Sega 8-Bit for the cost of P&P.