i have seen a plan for a pot belly stove in a mag years ago i think it was the "grass roots "mag .
the stove has since been built by quite a few people who said it worked very well .
the body of the stove was made from 2 large truck brake drums ( thick cast iron ) you can get some where one will sit inside the other i had a pair a while ago but never used them .
.one with the axle hole downover and the other with the axle hole up .
the top axle hole is where you bolt a flange for the flue , you need to cut the door with an angle grinder and fit some legs .
maybe a google search on brake drum stove or some thing could turn up the plans .
'If the enemy is in range, so are you.'