**For people who sell on Ebay** does this seem legit? ?

Scam. Don't respond to this. The way this works is generally the guy will say that he trusts you to refund the excess and will send you a check, quite official looking, that will be for more than the total sale. Usually due to uncertainty in the shipping expenses, etc. You cash the check and send him the item and the excess money. The check bounces 2 months later and you are held responsible for the missing money and you lose your item.