Who was the supplier for your materials? Did you have to order it all or were local sources able to hfill your needs? I just finished a Loki helmet I want to cast that while is wearable but a bit too heavy after a while due to body filler weight.
The local supplier is in SA and they have fast shipping. The only other place i have found is Barnes in Sydney but tend to be out of stuff alot of the time. Here is the SA Ebay page he also really good with answering any questions you have.