I have on my desk 2 OEM GBAs full stock, one was originally mine and in great condition, the other was off of ebay and is covered in micro scratches etc, is it worth restoring this shell at all or just replace it with an aftermarket one, theyre not exactly expensive
I’m of the opinion that the best GBA is the one that you play.
The one that you play is the one you can see without a side table lamp.
Get yourself an IPS screen mod and a case that fits it and call it a day.