Are these Chinese KOs of G1 Prime which usually go for about 30 bucks on Ebay any good? I've been thinking about getting one to use the box as a neat MiB-like display for my loose original one and, since he's been serving as a desk companion for a while, it would be nice if the KO feels identical enough to replace it.
https://www.ebay.com/itm/Nostalgic-classic-Transformers-G1-optimus-prime-car-red-version-Primary-colors/282711178166?hash=item41d2e63bb6:g:rPMAAOSwceNZXkxCOn a related note, the trailer of the one I currently have is somewhat yellowed, will Retr0bright solve that? If not, what will?