JKB,
If you don't mind the drive, there is a company off of 1-69 here that sells circular polyethylene tanks with minor flaws at very reasonable prices. They will cut them down to whatever height you want. Most of the tanks are 4 to 5 feet in diameter.
I've purchased 5 of them now for not much over $100.00. They're white and show the fish and solids quite well. I cut a hole in the center bottom with a hole saw at pick up to aid in hauling (one of the straps goes through the hole), and the hole is also used for center drain by installing a 3 inch Uniseal. I prefer the Uniseal as a bulkhead fitting creates too much of a raised area IMHO and it collects solids. As far as hauling, the tanks are very flimsy so the strap through the hole insures they stay secured on a trailer.
The company is the Assman corporation in Garrett, Indiana (honest no kidding).
http://www.assmann-usa.com
