That is the Rubies costume. Unfortunately that's the official and licensed product. STAY AWAY! Members have successfully modified the suit to 501st standards, but I think all would agree it's not worth your time and money to do so. If you want a ROTJ-style suit look for CFO. If you're going for ANH or ESB read here:
http://www.whitearmor.net/forum/topic/19329-where-what-and-whom-to-avoid-when-buying/
http://www.whitearmor.net/forum/topic/11538-the-various-types-of-armor-and-where-to-find-them/
You did the right thing coming here before buying, and now you should just take the time to read through the forums. You'll save money and headaches in the end. Welcome to FISD.