Moved to General Hardware/Equipment forum.
I know glasscages sells frames, which is probably where you were looking, but I've never seen a 6' frame. In all reality though, I think you would probably spend so much on the frame and shipping that a new/used tank would be more economical. I see 125g tanks on craigslist all the time. I recently purchased a 125g tank and stand for $200. So, it may be worth it to take a look around and see what you can find. I definitely wouldn't feel comfortable without replacing the frame on that tank though.
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