So my local pet store has a 75 gallon tank that a customer brought them. It is really dirty, but the woman said that it holds water fine and it doesnt seem to have any cracks or chips. They are selling it for only $20!!! The only problem is I wouldnt use it for the build I want to do now. Should I still buy it and store it for the future??? It seems like such a good value if cleaning it can make it look real nice.