LF Sump- Or Glass to build one, condition- Good or bad

[Nano]

As the title says, I dont care. If it leaks no biggies its fixable! I'm building a stand for my cube tank and currently have it framed up. the inner Dimensions are 22.5x22.5 and the door will be about 16 inches give or take. I am looking for a sump that can fit this bill. or if you have a beat up cube tank that would fit, let me know! Or if you have some old scratched acrylic or glass, I'll take it off your hands!! Thanks

EDIT. Obviously it needs to be smaller then 22.5 to fit though! haha
Preferably around 20x20x whatever high.. but I'll take 18x18 or what ever I can get!

Mahnamnah do do dododo