I went to put my winter set back on for another winter and found that one had a large sidewall bubble (I have a lot of potholes on my commute). So since these are on a Subie, that means yeah....went ahead and replaced all four with new ones.
So I have three good ones with about 50-60% tread (about 6/32" out of original 11/32" by my measurement). All three have some camber wear on the inside edge, and a few tread blocks sipes are a bit ragged, but overall they were in good enough condition that I still expected to get at least one more winter out of them.
Anyhow, located in Burke VA outside Washington DC. Will consider offers. Just trying to recoup shipping and mount fees for the new ones, lol.
If you want the 4th one, all yours as well but I wouldn't drive anywhere fast on it.