New plan - maybe. What do you think about building a 26x13x6 tank, 15,000 gallons instead of the pond? Think about it, there are people on here with experience in doing it (more people that have tanks this size versus people that have ponds the size I'm talking about. Or the other option is something a bit bigger, 12 feet longer totaling at 22,000 gallons. I'll post a stock list in a minute, still working on it but it would likely be a lot smaller.