It is a pretty straight forward build with parts that are not too hard to find from either your stash or Bricklink with the exception of the printed dome.
There is some speculation that this polybag will be released in conjuncture with the Star Wars Celebration event this year at Florida or a giveaway at the Legoland Star Wars Celebrations.
Either way, it would prove a bit difficult for those who are not living in the United States or Europe to get their hands on one of these. As it is, this is being sold on eBay for close to USD$100 already.
I will update once I have more information on the polybag.