i would say for a basic brew, roughly 25-30 for ingredients depending on if i am repitching yeast from a previous batch. most expensive is probably around 50 -60 for five gallons of high gravity beer. but usually that yields a small beer around 5.5abv.
i use krylon 7110 low odor finishing gloss spray. http://www.craftsetc.com/Store/ShowProduct.aspx?p=780668
two coats and the colors wont run unless submerged in water for a long time (even then the black ink remains). i also print on either avery or hp label paper. those seem to stick on until...