You don't bend pipes, you go and buy stainless, straight sections and weld elbows, way, nicer than anything that's bend.
I have done several that way, you will need a tig welder to do nice welds but you can get a super clean look with Mig also if you are any good with that. If you have the skills mig can produce some very clean results. Just use argon/co2 mix for wetting.
This is a tig welded one, welds were not wire brushed or etched so you will see the reddish scale still there.