Hey Gino,
I love your ESB Vader! I want to start working on a vader costume and I did some research. I think I will go with an SPFX helmet. I noticed a seller on ebay selling the belt and chest box and claims to be movie accurate. If you don't mind, I would like to use the vendors which you purchased from. If you don't mind sharing that info, you can send me a pm. I welcome any guidance you can provide for my vader project.
Regards,
Victor