Selling Built Red GameShell/Non-Working Battery_US

If anyone would be interested in buying my built Red Gameshell, please let me know. I realize the models are back in stock now but figured I’d throw it out there. I’ve been trying for months, but have not been able to find a suitable replacement for the battery (the indicator doesn’t even come on anymore when I try to charge). I have Pokemon FireRed and Metroid Fusion on there as games, and would rather just try and sell it if anyone would want it for parts/could figure out how to fix the battery.

Please let me know!

Would you be able to ship it to UK?