You might be able to find a tank builder that would be happy to cut the materials in their workshop then build on site in your basement. I'm sure i've seen threads like that on here before.
I'm about to start building a 9x5x3 myself and do worry about my workmanship leaking, but i feel it'll be worth the risk for the satisfaction i'll feel when it all works. As long as it's all done slowly (no rushing!) and everything's done right then there should be less chance of anything catastrophic happening.
I'm about to start building a 9x5x3 myself and do worry about my workmanship leaking, but i feel it'll be worth the risk for the satisfaction i'll feel when it all works. As long as it's all done slowly (no rushing!) and everything's done right then there should be less chance of anything catastrophic happening.