The Energon Pub

Hey everybody. I'm interested in buying a complete blast off from ebay for 37$
First, is there anyway to tell if it is the metal chest version from sight?
Second, is this a good deal? All items are in good condition with very little wear, even the tech spec looks expertly cut. I know I can trust this seller because I have bought from them before.

Very difficult unless you trust the seller at his/her word the the seller's camera is super high res.. Usually it'd have a paint chip or two.