Thanks guys! As a newbie, I am curious what most tipped you off? I was concerned because this guy seemed too eager to sell the piece. Also, while I saw some elements of the correct signature, they all seemed too similar, like signed by the same person.
Easy to tell all three signatures were from the same hand. Signatures are not in line with authentic signatures from them. Moon signed in pen. Sharpie was not the go to when he was alive.