Well as far as I know The Rubies Boba Fett deluxe fiberglass helmet is not out yet, I know the Vader and Jango are, but the only deluxe helmet I know that is fiberglass is the Don Post Deluxe, and it is a pretty decent helmet, but definitly not worth the money.
Now A rubies is the absolute bottom of the barrel Fett helmet you can possible get, and when you get it requires- and this is an understantment- alot of work.
Some people can actual make them look good, but that skill is far beyond me, I just cant see how.
Most of the time when there is a deluxe anything its 10 times the price of the regualar generic Helmets.