Stone oven

I'm planning to make a stone oven. I hit on this idea when my wife said
that she wanted to eat pizza which baked in stone oven.
Last week, I bought some tools to make it. For example, a blocks trowel
, two spirit levels, masks, a pair of goggles and grinder blade. I'll
wear the mask and the goggles when I cut bricks with the grinder blade.
I got a permission to built it in our garden from my father-in-law
yesterday. So I'll make a base when I don't have to think of a frost.