I started building my mash tun tonight by purchasing a 48qt cooler that will allow me to do 10 gallon batches. The cooler was $19.99.

I am also assembling my own nozzle which cost me $23.74. I could have bought one from a home brew shop online, but this gives me something to do with my hands.

I am going to go with a manifold design. This way I can start out with batch sparging, then later try out a fly sparge in the future easily. Still debating on cpvc vs. copper at the moment.