This is where I got mine:http://www.quantaproducts.com/
They may not be the cheapest but it was quality and I felt worth a bit extra.
I also got a sender and line kit. Toolmanmike
X2 on Vans. never a problem for me. I always solvent wash and paint my tanks silver or multiple coats of clear, just to help them look clean for years....rear restoreres would frown on that for sure!