sfloyd,
I bought one for mscs20 awhile back from Brickel's racing products....great company. You can get either black or white, and they come with wings, but they are separate. I think it was around $55 with shipping. You need to email Mary there,because they aren't listed... and have to ask her the product number to order, you have to say a blank sprint diecast, and specify the color. They are very detailed, and awesome!!
https://www.brickelsracing.com/
if you want pics, message me your email and I will send you the detailed pics I took of the one I ordered