Hi there, I was the guy looking for these cleats too.
I got a set (F & R) from Tredz - not sure if they were the last set but they don't seem to be on there now.
However, they don't seem to work too great with the squarer-design pedals I have, there appears to be some variation in the rear cleat - perhaps my pedals would release easier with the sloping edge ones I've seen pics of.
Also, as you say the front cams are s*** - they are just plastic which wear away so easily. A guy in a shop said that didn't matter, but I dunno if I'll agree in a few months.
I think I may just go for some newer pedals that aren't such a pain to work with in future...
I have seen metal front cams only for sale on Canadian sites - maybe they would help you.