WTB - Fluted 18k Bezel For Datejust

Hi folks! I need to source an 18k fluted bezel plus titanium locking ring for a 2005/6 36mm Datejust model 116138. This particular model has to utilise a titanium locking ring to fix the crystal in place and the bezel fits over that so there is only one specific bezel which can be fitted to this watch. I was sold this watch with the incorrect bezel fitted and really need to source the correct one. Can anybody help, please?

Thanks in advance.