Two thoughts.
1. There are Camp Chef representatives who do things (demo wise or such) for IDOS events.
Camp Chef uses a special conditioner. You can read the write up at
www.campchef.com Look for cast iron, then accessories, I'd guess.
You could ask one of those folks to give you the ingredients in the Camp Chef Conditioner. & if the pre-seasoning on their ovens contains that or what that is.
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2, Billmans Foundry Australia, Castlemaine.
Billman's Foundry
www.billmansfoundry.com.auLangslow St
Castlemaine VIC 3450
(03) 5472 4302
They take orders, wait til they have a run and then put a number of sizes through the molds. I own a 9" Billmans, which is sitting waiting being used & cared for by a friend in NSW. He told me that he and another were going to the foundry to pick up new ovens. I promptly messaged ''get me a 9" too please.
Since individuals can go to the foundry, this might be the place.
I would expect expeditious shipping to be over $100.00 au
Now, you can also go to google Oz,
http://www.google.com.au, put in Billman's Foundry. You will find search results for COCIA, Camp Oven Cooking in Australia Chat Forum. I read lots there. Search section on equipment: History of and Camp Ovens and related equipment. There are pictures there. Kerry ?????? is the person to write. I'll also write my friend and see what he thinks re, the raw cast iron.
BTW Aussie ovens are usually 5" deep vs. N. American ovens, which are 4" deep.
I'll also write my friend and see what he thinks the chances are of getting raw cast iron.
:)