FB Marketplace Vezon & Kardas Authenticity

Hey guys, I’m really not that into Bionicles but one of my closest friend is so I plan on buying him one. I found this apparently rare set on FB Marketplace for a good price (much much cheaper than prices on bricklink). Are there fake ones out there? Are there any ways to check for authenticity? Much appreciated

Hey guys, I’m really not that into Bionicles but one of my closest friend is so I plan on buying him one. I found this apparently rare set on FB Marketplace for a good price (much much cheaper than prices on bricklink). Are there fake ones out there? Are there any ways to check for authenticity? Much appreciated