I know that this isn't the answer you are looking for, but--

If it is for a business purpose, you should be able to get ethanol without the tax stamps. I worked in a lab that used to get it in 50 gallon drums. They started out with tax-stamps, but we were able to prove it wasn't for mixing drinks, and got it cheaper. There was always a rumor that they used Benzine to remove some of the water, but I can't say that was the real case.