I understand your concern, but in complete honesty unless I'm buying a card one of my boys is missing everything I sell is 100% packs I open myself because I don't trust selling 2nd hand cards... Plus it's my one vice kind of like gambling...lol
I occasionally do it if the offer is right... At this time my cards are going for their higher or more values, plus the buyer is responsible for the 10% fee... Mssg me if you would like to offer...