Where can I find this wheel?

I have a 1998 C1500 4.3L V6 with some wheels on it that I have only seen once on another vehicle and would like to have another set for another project truck. The only marking I can see on the wheel is on the center cap. "OW Optima Wheel" is the brand. Every time I search for a company that might have some wheels of this brand, I only get results for the Kia Optima. Help please.