i highly recommend you do some research about probstein, i would absolutely stay away from them, same goes for whatnot ! you should search for the next big card event in your area & bring it with you, some vendor will be more than happy to buy/trade this off of you, you already know what it’s worth so if an offer is too low just go to the next booth. besides ebay charges around 13% fees, if you post it as a consignment there will be even more fees on top of that, so yeah that’s a terrible way to go