Malcyb
Member
Realistically that would be a pair of tyres as just getting one would presumably mean quite unbalanced tread depths across the axle. Agree with everything noted above about proximity to sidewall, probable quantity of sidewall damage due to running near-flat and large quantities of internal debris due to friction. Best of luck with the replacement.
Don‘t know. I’ll check the tread depth but think there’s loads on the opposite wheel