Call Feezles in PA, https://www.feezleautowrecking.com/ Then look around on ebay for un mounted, used spares.
When Kris got her "newish" Optima, it had the jack and fixaflat spare kit. Not even a pump with slime, just a can of fixaflat. We found a complete spare tire kit with mounting insert, jack, tire tool and spare donut at a very reasonable price from a scrap yard. The tire had never been mounted, everthing looked brand new. We paid less than half what a spare donut from Kia would have cost.