I have 4 Falken Azenis RT615s in 225/45/17 with 3-4/32nds of tread on all of them (they start at 8/32nds). One has had a puncture about 1" from the inner sidewall in the tread.
I just bought new ones from Dunn for $147. Online they’re about $120 + shipping per tire.
3 good ones, $40 per tire. Comparable to eBay prices for a similar used tire.
1 plugged Azenis, $20. I can plug/patch it or you can if you’d like.
Buy all 4 for $140 and deal with the plugged one, or buy the 3 for $120 and then a 4th off eBay for another $40.