2 Adult Yellow Bellied Sliders - For Sale or Trade

I have two female, yellow bellied sliders that I need to find a good home for. They are about 11 yrs old and are in great health and always have been. They have always been housed together and get along very well. They are actually my mother's turtles, but due to personal and financial reasons she asked me to find a home for them. I'm willing to sell them both for $50 or trade for supplies. I am currently in need of supplies and would consider a trade of supplies in good condition...specifically, anything that would work for a Green Iguana or a Uromastyx. Let me just say that I'm not asking for something in return just to make a profit here, I'm asking it to make sure they go to a good home with serious and committed owners. That said, more specifics. They are currently in Shillington, Pennsylvania which is just outside of Reading. Due to the weather, shipping is not an option. I would be willing to meet someone half way or deliver within reason. Also, they are currently living in a custom made, acrylic turtle tank coffee table with a decorative carved wood frame and glass top, that I would be willing to give ONLY whoever adopts them a great deal on. This would be a pick-up item only as it is huge, sorry. Thanks for your interest!