Viniceboy
You going to roll your pipe material with a slip roll? Grizzly sells a nice slip roller for around $200.00 I bought one this summer and it works pretty good a little practice and you can form nice cone or tubes.
I like the idea of using a chair leg for the header I've used conduit or stock head pipes for adjusting just cut then re weld. For cheap metal for the pipe I get hood skins or door skins from body shops they will give them to you.
Norman

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