This has already been going on with lots of other "supposed" NOS parts on ebay. Within the last few months I've watched a number of items go thru as NOS when they were actually used/altered parts in NOS boxes. Two examples. Someone had a pair of NOS black arm rest pads, and the entire backside of the pad (including the bare metal that's usually sprayed with glue) was painted black. Final bid on these was $425. In another instance, a seller had a supposed NOS window crank in the box with a knob that was yellowed. The way that the knobs get yellowed is from smoke/sun exposure. When I pointed this out, he said that the crank still had fresh white grease inside, and therefore proved that it was NOS.
As prices paid for this stuff goes up, this will continue to happen more and more.
