What was total cost for your build-out? I've always wanted to switch to a converted-keg system but I can't for the life of me find the darned things. I can get SS kettles etc no problem, but they are $$$, and I would like to -$$ that $$$.
Is that shipping or packaging insulation you've got wrapped around the mash tun? What is that material and how well does it work as insulation?