Hi tranx, I guess I am in a similar situation like you when getting these less usual items because I am from Czech republic. When I wanted to try Spark-lite I found an on-line store which carried knives, flashlights, some firestarters etc. There was no Spark-lite though so I asked them via e-mail if they could purchase it for me and they absolutely agreed. Several days later I had my Spark-lite. They even added it to their store. I am sure that if I will ever need something survival related that no store here carryies I can ask them to purchase it for me.
You could try the same strategy - try to contact some knife on-line stores (that purchase a lot of brands from USA) and ask if they would purchase Spark-lite for you.

When this fails you can contact me using Personal Message - I could purchase it and send it to you. It would be a bit more expensive this way though due to the added shipping.