Stills can be purchased online. If your thinking of making one, do your research, they can be dangerous. (If there's a blockage in the worm, it could explode.)

If your thinking of making your own, there's plenty of different ways to do it. Consider sheet copper (learn a new ability,) then you could also run liquor with the obvious benefits of the copper. (Look it up.) Do research on that, tho. Dump out X amount at the beginning (the heads- or save it for fuel/cleaning purposes) and save the end of the run to run with your next batch. (The tails.)

Fuel wise, use gas if you can. You'll have control of the temperature and won't burn your (alcohol) wash.

Depending on your state, you may need a license to even have it. Just beware who knows you have it due to this. Even if you’re not using it- it could still be a crime. FTP.

a bucket, bendy copper tubing (refrigerator section at home depot, use sand to fill the pipe so it won't crimp while bending helps too but isn't necessary), some silicon caulk, a cheap 2nd hand hotplate (Someone I know used an electric wok successfully), and a high temp rubber stopper or glass fitting to a sealed tea kettle(or pressure cooker or equivalent).

Then a bunch of corn syrup, yeast, water, airlocked lid, in a jug for a week or two. Ice the bucket, Throw away the heads and tails.

Some damn clean water.

Now don't go makin' no radiator squeezins. That's illegal.