No joy with custom tank

Trying to find someone to make me a tank for my betta rescue adventures... So far I've mailed 4 places and getting the cold shoulder or the silent treatment! Just looking for along tank with partitions and a plastic flip lid, nothing fancy. I could make it myself but cannot find anyone around here that does 5mm panels. I have 4 tanks and its getting messy now, it would be a lot easier for me to treat everyone in the one tank since most of them are just injuries. Any ideas of places that can help?