Derek, you were doing a lot of research on CO manufacture for yourself. I remember you had some price factor issues. Did the whole idea get canned or is it still on the burner?

Regards Skip

That $600 would be to get a pattern made up, which you may be able to do your self, it only needs to be a wooden replica, smoothed & sealed.
the handle is a bit tricky, if you look at most ovens you will see both on the ears & lid where the protrusions are made from two pieces, they push a tapered peg in from the inside of the pattern & secure it while ramming the sand then draw them out leaving a void in the sand before removing the rest of the patern...easy???

Mick.