I own Billmans camp ovens 9", 12", 15" and 18", bought over two years as could afford.
They are a nice deep camp oven.
The 9" fits in an Ozpig top which suits me as an Ozpig owner.
I recommend them from the sole remaining Foundry making camp ovens in Australia, to be cheaper they would have to follow Furphy and sub out to China.
David