Infact Ainsworth made a big mistake, imho, by telling his armors are casted off original moulds when it is obvious they're not. If he would say "casted from the hand which made the originals" I think he would have a better credit and a better advertise.
In any case, even if it is obvious the seller uses the SDS name to advertise as best as he can his FX kit, he doesn't say it is an SDS, but it has a SDS Look (it is not fully wrong, if it is said to dinstinguish this armor to a halloween costume). Or did I misunderstand? It could be, since I'm not english motherlanguage.