If you need I can get you some square steel tubing at OEM price and cut them at work for you. We'll just need to draw something up and I can get pricing on raw material but it shouldn't be too bad. Do you have a drill press or a band saw with a steel cutting blade? If you do or if somebody around here does I wouldn't even have to use my lunch breaks to make it
Can get welding done here too if need be. Or we just bolt together with hardened bolts or something. If you end up getting it when will you have to move the tank by? We can have a meeting beforehand too and figure out the stand and moving and all that and a meeting for the move

thats how they build foundations. simple and industructable.