This is awesome, I imagine the rig is either on the side of his house or perhaps around back where no one can see it easily?...
All that being said, if you have a specific idea for your house - for example, maybe @Necroes wants his house to back out on a small hill - just let me know and I'll whack it on the map.
Given what I now know of the map; Chances are his house would be a hut built into the side of a hill, located deep in the southern swamp/marsh. If you go into his hut, and go all the way through a very long tunnel-the entrance is hidden behind a liquor cabinet-you'll be lead to where the river opens up into the marsh.
Clean, fresh, running water is essential for making good grain alcohol. His rig is hidden there, in a shady grove hidden under a big willow tree. I imagine the river running into one side of the tree, and out through and between its roots flows the water that enters the marsh and makes it wet.
He probably gets most of his supplies for making the brew from around the marsh. You can find all kinds of wild grains in a marsh! Mix in the right herbs for aromatics and flavor, and you've got everything you need for some high-ABV moonshine liquor! Just don't ask where anyone in a shit-hole town like Swampmuck got ten year aged whiskey. They can probably guess where the everclear is coming from.