We are building a trailer for a portable pizza oven and I am wondering if anyone has built their own oven for use in travel and what their experience has been.  I am torn as to whether to buy a ready made one or make a diy one.  My concerns are if it will stay in one piece durring travel, bumps, potholes etc.  Also I wonder what the best materials could be...earthen, brick etc.  How about heat, is one better than another?  Also, has anyone ever done a dual heat source such as propane?  And I also wonder about wood, how much you would need to keep one warm all day long.  We have plentiful mesquite and I don't know if the kind makes a difference.  Thanks!

Amy