I'm sorry man. Kind of shitty of me to make a comment about how literally everyone ever had a copy of Sliver/Dive and then not even comment on your question.
I would love to help you but I don't need anything that you have. I feel your need though! If there's a local record store near you, take them shits in and try to get them sold. It's not really peak time for unloading vinyl anymore, but a couple of years ago I made more than I was expecting on a box of records and CDs, many of which were total shit!
It would also save on shipping. BUT, the independent vinyl dudes I know turned pretty soulless when vinyl boomed. Where previously they would have been happy for the product (mostly) the vinyl boom made them greedy. They started going through records with a fine-toothed comb, and paying less for any little wear and/or tear. Pulled out their monocled like 19th century gold bankers.
I wish you the best.