I have used this method to de-rust a lot of parts, but nothing as big as what you have done. It has inspired me to go to Lowes or Home Depot and get the materials to build a tank. Great job!

1957 Chevrolet 1/2-ton Stepside LB in the Gallery
My Photobucket shots

The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." - John Stuart Mill (1806 - 1873)