Greg, That's funny to me- 'cause I first saw the term "rocket stove" in David Blume's landmark book Alcohol Can Be a Gas!
Then, a bit later, I "discovered" tin snips... now I'm addicted to making rocket stoves and ovens and cooking w/ them! I make credible white Ovens and rocket stoves, based on discarded 5, 10, 30 and 55 gallon cans and barrels. I've put time into researching and sourcing high quality materials esp. for the Ovens, I just finished rocket Oven #4...(restraining myself from ranting here about it...)
yes I could potentially make or buy a still, but it's WAAY cheaper to just buy alcohol. A license from the gubmint to legally make de-natured ethanol Is available, contrary to popular thought. Once you have invested enough,, it's all possible, I think it makes sense for those w/ access to lots of cheap or free feedstocks, ACBAG book gives enormous how-to details all about it. IF you get resourceful enough, it's do-able, or you can buy small manufactured stills and do small batches of ethanol using sugar and yeast, then you use zeolite to remove the last bit of water to get proofs up to 180-199 range. I was re-visiting the www.KnowledgePublications and their youtube's about converting a car to true multi-fuels using compressed hydrogen as a combustion catalyst. Enabling the use of potential fuels nobody else can use! Involved... Another group of interesting DEEP rabbit-holes.
But, see, all this is why I LOVE the whole Gadgetman and MPG Remedy thing. Allowing substantial gains without having to be a small-scale Industrialist...
Tracy G