I checked out the E-bay link that you have posted. I have to say that they are not exact, but they are the similar style. GMC no longer uses the old style anymore, but believe it or not Ford does. I haven't compared them side by side, but I do believe they are the same brand. But a Ford dealer would probably want big bucks for them. I've tried to research the manufacturer, but it seems like they do not sell them directly to the public. I know what brand they are, but need to go back to my old books to get it right.
What kind of compressor do you plan to use?
Bill