Is this legit ? How can it be that cheap ?
Questions like this makes scam something as easy as ABC because people like you are the ones that gives scam the confidence that someone somewhere will fall for it and they can come again to meet another greedy guy ready to prey upon. Aside yours someone was even asking about escrow. How on earth do you expect that to happen. When someone opens an account on the forum and the only thing he could think of is selling gadgets if not that he knows the right section of the forum to make such ridiculous thread.
Aside that, he is now selling way far below the market price and not only that, the add-ons he adding is even another huge red flag. Just stay away as far as you can but unfortunately someone might still fall for this.