Just in case someone's looking at this, needing to replace lockdown bar reciever for a Capcom, what I ended up doing was like kenlayton recommended;
I went and bought a 'no button' Stern lock down bar, and the Stern lock down bar receiver.
That being said, to properly mount this receiver bar, I had to drill out fastener holes on the receiver as they were too narrow for the #8 or #10 screws that Capcom used on their lock bar. The receiver is obviously different, and has a different layout.
I'm glad that I was at a customer's site that had a drill press.