I have done a method very similar with alot of success. I used this cooking method as the "grand finale" to my Cooking Merit Badge class at Citta Scout Reservation. It's very easy and it impresses everyone. The best thing is that the materials needed don't cost more then $15. Instead of rebar I used garden fenceposts, because that is what i had available. They worked really well because they had clips that were MADE for supporting chicken wire. I didn't do anything as complex as soaking or stuffing the chicken, I seasoned it with Old Bay and some McCormick chicken spices and let me tell you, it always turned out perfectly.
My method for building this oven was the following. In the fire ring, i placed the four fenceposts, with the 4 tubes attached and facing inwards. I then took foil and wrapped the sides while it was standing. This can be difficult, and the heavier the foil is the better, to help with it not ripping. I always left about 4 inches open at the bottom, for ventilation. It looks like a giant cube of foil, with about 4 inches at the bottom and 4 inches of fencepost open at the top. I had a simple meat hook with a chain that i used to hang the chicken from. I like the idea of the basket though. I've recorded tempuratures upwards of 550 degrees inside the oven. In spite of this, I've never had a burned bird, for as many times as I cooked it across the summer. I had the ability to make it a more permanent structure, and i had the bird hanging from a lashed spar that hung across the oven. I always covered the top with foil. It would only take about 30-45 minutes to cook a decent sized chicken, and after checking the temp. with a meat thermometer it was all good!
I strongly suggest that people try this method of cooking, it's not only amazing, but tasty as well. Not as difficult as it sounds!
Eagle Scout - 9/6/2002
Citta S. R. Scoutcraft Director
Assistant Scoutmaster Troop 29, BCC
Member, Crew 85, JSC