Compound bend in frame rails

[GMracer]

On my project the front rails sweep up and bend inwards and I have talked to both AutoWeld and Art Morrison and both have told me it's impossible to replicate that kind of bend, so I was going to fabricate the bend with some 90*s but AutoWeld told me what they do is bend it straight (the easy way) then pie cut three sides and bend it inwards and lay a nice penetrating weld down the seam and clean it up. Does that sounds like a good idea? I figure I may even plate that joint after for added strength but I wanted to see if anyone here was against it, and if so why?