I have 4 Gen2 15" wheels plus trim rings (also fit Gen3, not sure anout Gen4) with General Altimax Arctic 185/65R15 tires mounted. 5mm/just under 7/32" tread left. I think they also have TPMS sensors, if so they are old. Sample picture below, individual pictures of each wheel are available. $500, prefer local pickup (Northern/Central NJ).
They're likely aging out by now. I'd have a tire shop dismount and recycle the tires, just sell the rims and trim rings.
Those tires are 50% worn, which for a snow tire means it won't work very well. I could use some extra rims so $100 for all 4 and they are out of your garage.