I went ahead and made an order to McMaster-Carr yesterday and I got my hardware today.  Part of the order was to replace the standoffs that came with the Speedball to hex-shaped jawns.  The ones from the Speedball I drilled out and turned into the short spacers you see between the PCB and transformer bracket.  Now all that awaits is trying to find a powder coater with the color I want and someone who will let me use a mill with my bit for a few minutes.