I sell liter bottles of liquid K. Right now I have Mission Pharma brand. It's straight USP grade hospital ket, not the fucking vet ket. Liters are $1,500 a bottle. If you know what you are doing and slow cook (evap) it, you can easily get back 50 grams out of a bottle.
Where do you sell it?
Hit me up on Hushmail for more info. I'm not on here a firstname.lastname@example.org