Here's Phase One of our quest of going pro.
We needed a walk in cooler for our fermenters and for our grain storage. We decided to go with an 8' x 8' cooler framed with 2x4's and covered with plywood.
Each 4x8 section once assembled was covered in mylar bubblewrap insulation, similar to the carboy wraps. Once all the sections were assembled all of the seams were covered with aluminized tape on the inside and carpenter in a can on the outside.
The whole thing is kept cool by a modular 10,000 btu AC unit that we got a Lowes. This keeps it at a nice 60 degrees without overstressing the unit. Currently we have five 15 gallons plastic conical induction tanks and about 400 lbs of grain inside.
For our brew system we of course use The Great Northwestern Brew Baron.
Our Mill, a 2 roller Barley Crusher, with the ability to run a 3/8 Drill. The Barley Crusher is attached to the lid of our grain bucket for minimal dust.
Not pictured are the two cabinet freezers (one for cold crashing and lagering, the other for bottle storage) and a chest freezer (keg storage) each on their own temp controller. We also have an area for bottling and filling pigs. Some of the other stuff that I've built since we started but don't have pictures of is a dual Corney Keg washer which doubles for cleaning out the Mash Tun and Kettle, a basin sink out of a 55 gal poly drum, and various re designs to the Brew Baron.
All together with the cost of the Brew Baron, the walk in cooler, and all the other ancillary stuff you're looking at $5,000+