Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Ministeam is the only US supplier that I know of off-hand...

As for overseas, Phil and Dee at Forest Classics would probably be your best option... But instead of buying off their site, send them an email to get the correct pricing/shipping.

Last time I emailed them, I used email address: info@forest-classics.co.uk  and had a reply within 45 minutes. (this was at 11am CST)

I also have this email on file if that one doesn't work: philanddee@tiscali.co.uk