I've been contemplating an experiment with an old stainless steel thermos, to turn it into a stove/pot/water carrier, all in one.

Something along the lines of the Kelly Kettle:
http://www.leevalley.com/gifts/page.aspx?c=2&p=43901&cat=4,104,53221&ap=2

Except, I would like to keep the inner container of the thermos intact.

Any ideas?