After looking at all the different options, crappy one for 30, nice one for 70, super nice one for 150...I decided to make my own, welding together a box out of sheet metal. Cost me about 20 in sheet metal from a local metal yard out of their discount/cut/cull bin. Still need to figure out the back though...thinking about cutting a piece of sheet and then welding on a hinge and a clasp and gluing on a rubber seal. Thats my super DIY version...
Never underestimate how much assistance, how much satisfaction, how much comfort, how much soul and transcendence there might be in a well-made taco and a cold bottle of beer.