Sorry that I don't! I hope you find someone who does.
There should be something (is there already?) like a online library of used piano scores where people share and lend stuff, in person or by mail. Basically a music library for those who have no access to a university library or a good public library of scores and books. Lots of music sits on personal library shelves for months or even years without being used, and I would personally be very happy to lend my scores to a serious musician who will study and play them or to gift those I no longer use. Maybe we can start something like this on PW? I'm probably too far away at the moment to be able to contribute music personally or maybe even by mail, but I'm starting a Buy Nothing group where I am (check out the BN Project
if you don't know it! Such an important initiative especially now in the holiday season), and the whole philosophy is that the idea of buying and owning everything you need is relatively new in history; you can almost certainly find someone who's happy to lend or gift it to you, and that person will benefit from you or from someone else, even if not immediately (it's not a second-hand shop or even an exchange group because the basic principle
is giving freely, and this "gift economy" works to strengthen the fabric of society). I used to be fond of getting my own copy of everything, but I realized that collecting scores can become a goal of its own and that I'm more likely to use, play and study music more actively when I borrow instead of buy.