I have a few extra bare boards I can offer at cost, I think it worked out to about $5 each, not gonna be worth shipping outside of the US. I don't want to compete with Dave, I only made my own because they were sold out.
On a related note does anyone know of some good quality insulated binding posts that are a drop in snug fit in the PCB? I'm not fond of the bulky bare loudspeaker posts. If I were designing from scratch I think I'd have used banana jacks or flying leads with banana plugs for the output since I'm normally connecting straight to a multimeter.