Have you (Seek Outside) considered building a titanium oven for use on top of your titanium stoves? My family and I recently used our 12 person tipi and SXL stove on a week long llama packing trip. One item that we packed was a Coleman camp oven (http://www.coleman.com/product/camp-ove ... a1HwxNViko) that we used to bake cupcakes and my 40th birthday cake, but at five pounds that sucker is HEAVY.
I have a feeling that it would be cost prohibitive, but a lighter weight alternative would be great.