Something you might want to try michiana...when talking with the company, tell them you are wondering if you can get a sample of the material. Tell them the minimum size/quanity you need and that if things work out you may end up buying more.
There have been a few times where I have needed just a small piece/quanity of something that I couldn't purchase, but calling them and telling them that if what they send works out I may be buying a larger amount. They are usually more then happy to send a sample of their product in the hopes of making a big sale.
Just a thought.