I purchased this mask on eBay a couple days ago
Hopefully somebody can chime in and help you out. I can tell you for sure it isn’t Justin, Nikos, Freddy, Heath, Chris, Rowland or JC. I honestly have no idea. It could even be somebody who overhauled the mask and isn’t well-known. Have you tried contacting the seller and asking him who did the work on the mask? It could even be the person you purchased it from. Seems a lot of people are trying their hands at overhauls nowadays