My favorite device is my Provari with a tank. I work construction and my mod is too long. It sticks out of my pants side pocket and catches on things when I'm working. I would like to find a VV box mod with the protection that the Provari has. Also where the tank is inside the Box mod. I seen a pic one time of a homemade box mod that I'm looking for but I cant find it. Does anyone sell a unit like this? Or where I can get the parts to build one?