I am still alive and around, although just out of Perth now. Have set up NextG internet so can now finally access the net again.
I have 223(5.56) and 308(7.62) belts somewhere and can probably look for them this week sometime.
The 308 end up cheaper as you need less bullets, but are heavier.
Do you want a belt, or Rambo style over the shoulder "Furor" style?