The Brewery was initially available at L22 but changed with an update in September of 2016 and is now available for purchase at L28. Keep in mind you will need certain buildings available to you in order to complete the build req's for the Brewery.
Look at Neighbors for a Large Library. These will drop Knowledge each time
Any level Mine on your land or at Neighbors can drop Copper Nuggets, they can also be crafted in the Laboratory
You will need a Lumber Mill upgraded to L3 for Poles to make Magic Wand, Poles can sometimes drop from any level Lumber Mill at neighbors but they are very rare. It is faster & easier to run your own Lumber Mill