As soon as I finished the last post, and even EASIER tandoori oven idea popped into my mind.
Take a ceramic flower pot, turn it side ways and place it in your oven on an oven rack. bolster it with a brick on each side so it can't roll around.
Crank the oven up and let it heat up the clay. Next, take your dough and put it in the flower put and close the oven door. presto. a tandoori oven. and super easy too!