Help finding specific cosplay before Otakon

So I just got to the most recent arc of Hunter x Hunter and found out Hisoka's hair is the same color and length mine will be for two other cosplays for Otakon however, I can't find anywhere that sells that particular version of his outfit does anyone know somewhere that might have it? or a good place to get commissions? yes I realize I have little time and this will probably not happen, but I have to try