I'm lucky, probably. There is a metal supplier with a huge selection in the town where I work (Rotterdam). They are not particularly cheap, but better then unavailable. Spring steel I get from ebay in Germany, it's difficult to find that stuff in small quantities.
A picture of the hammers I use, and my new saw smithing anvil. The hammers are simple sledge hammers, but I eased the corners a bit on the bandsander. The "anvil" is a piece of scrap. In a harbour town, one mans offcut is another mans sawsmithing anvil. That Thor hammer looks like a very usefull tool, I'll check if I can find something similar with enough heft.
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