I had a 50 gal aluminum tank fabricated about 7 years ago and it cost about $425. The guy works out of his home just south of Boeing field. I think it was 1/2 a block from Seattle Refrigeration. I could probably give you the tel number and address if I were home, but I'm 120 miles southwest of Neah Bay and I wouldn't be getting home until 21 Aug. If you check out the area, you might see some of the metal sheets by his garage.

Deepwater