I am wanting to build a batch solar water heater. I need a company to get 40 gallon water tanks from. Ideas?

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There were solar water heaters everywhere in China. I never got a chance to see how much they were, but they cost thousands of dollars here in the States. Considering that the average Chinese person makes a few thousand dollars a year, they’ve got to be a lot more affordable.

Question by LONNIE M: I am wanting to build a batch solar water heater. I need a company to get 40 gallon water tanks from. Ideas?
I do not want to use old water heater tanks.
Tanks need to be approxiamately standard water heater tank size.
I need a manufacturer of the tanks for electric water heaters. Rheem, GE, etc. say that they cannot sell just the tanks.

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