I already have a 5 inch pipe I bought from the scrap yard last year some time to cut in sections to do the top curve.
I have many feet of 2, 3 and 4 inch pipe. Then have hundreds of pounds of diamond tread and flat plate ranging from 1/8 inch to 5/16 inch thick.
This is what I am thinking for the top deck.
I have welded in some more supports and a hanger for the intercooler (not shown).
My stainless diamond tread is in fact 1/8 inch, not 3/16 like I though which is even better. I like that its not as heavy.
The "top deck" is going to sit about 2 inches higher than whats shown, sitting atop of sway bar bushings, bump stops, shock bushings, body isolators, not sure yet. I can stack 2 or 3 of what ever I go with as long as they stack up to between 2 and 3 inches tall.
The metal is very square, I have not tried to shape it beyond getting the middle of the chevron edges lined up.
I am also thinking I want to weld hat nuts under and behind the holes so I can take the whole bumper off like a front clip.
Pull 6 or 8 bolts and the bumper comes free. That way I can access things like intercooler, aftercoolers, hydraulic power unit, rectifier, engine coolant pump, intercooler water pump.
Then on top of it all add more lights.