Where are you located? There's a guy in Sydney who sells them. Cheaper to get them from the US of course (but a takes a lot longer and a lot more hastle).
i would say it would be craig from kegsystems.com.au there is also a place in melbourne that makes them brand new.. can't remeber where, do a search here i'm sure it will uncover them.
thats always the way, i can't find the website now. from memory in was in melbourne, ferntree gully ??? rather pricey but then they were brand new and made to size/order
From memory they were about $100-$120 each. I only remembered he had them but was more interested in the 22L kegs he had for $110. Maybe I'll change my mind if my order from Brewers Discount doesn't eventually turn up .
I made enquiries previously and from memory they can build kegs from 5lt to 45lt. Unfortunately the cost is high, around $200 for a 19lt and not much cheaper for the smaller kegs.