Seal now goes under the name Bienfang - I just tried searching on Yahoo, but no success, and
www.bienfang.com doesn't work either (password protected home page?)
Try contacting a graphics arts supplier in your area - they can most likely get the presses in - but be warned, they're heavy, and shipping will be brutal to NZ.
I have a Seal 210 - it's a great press - you certainly won't go wrong buying one.
One other option - check out eBay, and look for auctions in your area - you never know, you might get lucky.