Off-grid galvanized Shower Tub

Looking for an inexpensive shower/bath tub we stumbled upon these wonderful images with 35 gallon galvanized steel tubs.

We found one on Amazon with Free Shipping: Behrens 35-Gallon Round Steel Tub by Behrens for $55.53 

Here: http://amzn.to/2kzYFQb

There are other shapes and sizes there.