Sort of a long shot but I seem to wear out my left shoes much quicker than my right. I have built up a few right shoes that are still in pretty good condition. I assume somebody else has the same problem but with the other foot. I would pay ~$15-$25 a shoe to help me even out my stock a bit. Only used for gym climbing so I don't care that much what model or the exact fit.
Alternatively if you want to buy some used right shoes from me that would work too.