You can buy everclear here, but its just 151 proof and not the 190 available in Indiana. I use the 151, and its wicked.
I just do the same stuff everyone does, I take an oz of buds, grind it up in a coffee grinder, and put it in a mason jar. Fill that jar with 1/3 bottle of everclear, and place it on a heated seedling mat, for 30 days, shaking hard every day, then strain.
Stuff will burn the taste buds out of your mouth man, I have no use for the 190 myself.