not sure if you'd be interested, I've got a pair of conti 3's in 225/40-18's

one is prob 3mm above the wear bar.

other is near enough new, prob 600 miles 6-7mm left but with side wall damage.

second one I put on my golf gti then the mrs hit a kerb at not even walking pace, but it's up to you if you were to use it.