I'm looking for a used bottom cushion seat foam for a 1973 A body bucket seat. Maybe even a lower seat frame for the same thing car.

The cushion that came with the seat is ruined due to cats peeing on it for years. Also the frame ...is still ok to use but would prefer a better one. I DO NOT need the tracks. I know where to get new foam but they will only sell in pairs. I only need one. Thanks everyone.