Wood fired pizza oven dome build out of 2 inch steel plate

Hi Guys,

I was thinking of building a second Pizza oven , I was not planning on cooking Pizza as such because I have an existing  oven that does the job well for me. What I want is a second oven that maintains a lower temperature well for cooking a range of artisan breads and desserts.

I am not good at working with bricks etc so was thinking of building the dome out of 2 inch thick steel cut and bent into arches welding all the arches together to form a dome Pompeii style oven. Of course I would  add a foot or so of loose insulation.

does this sound like a mad plan or a potential winner