Here, a local auto body supplier can and does, mix paint to match. Small batches, large batches, no problem. I can buy a pint, or horror of horrors, have it packaged in a dreaded spray can (Don't ask....)
How about checking one of those places out? I end up with automotive enamel or whatever it's called these days, quality paint by any name.
Just make sure you're dealing with a supplier, not a shop, for the best price.
Elizabeth in Iowa
The carpeting is gone! The carpeting is gone! Long live the cork floor!