I actually found the mechs at my local Walmart tonight. I haven't seen any other POC product there yet, so this was a pleasant surprise. Looks like my Walmart is in the middle of a toy aisle reset, so these should hopefully be popping up soon everywhere.
"I got your offensive weapon right here!" I still need in 25th:'83 team:Cover Girl, '84 team:Thunder, '85 team:Airtight,Footloose,Frostbite,Heavy Metal,Keel-Haul,Sgt.Slaughter,TollBooth. '86 team: Cross-Country,Dial-Tone, Iceberg,Lifeline,Low-Light,Sci-fi, Fridge, Claymore.'87 team: Back-Stop, Crazylegs, Fast Draw, Hard Top, Jinx, Law & Order, Payload, Psyche-Out, Rumbler, Sneak Peek, Steam-Roller, Avalanche, Blaster, Blocker, Dodger, Knockdown, Maverick, Mercer, Red Dog, Taurus