too bad to hear you welling to trade an almost new dex408 so fast.
why didn't you check the forum here first before buying that buggy ? i posted a video i made to compare the both buggy's and indicated clearly that the dex408 comes in 2nd place after the eb48 also notified that there's two big mistakes in it's design that made me throw it way and buying the eb48 instead.

Hope that you'll find a trader soon.