I found this from Northern Tool. It's listed as cast iron, around $120. Does this look at all like the one you're describing? I'll be able to use this in a well-ventilated yet enclosed space.
http://www.northerntool.com/images/product/2000x2000/330/330977_2000x2000.jpg
Here's a description of it- http://www.northerntool.com/shop/tools/product_200408996_200408996
I definitely want something sturdy. We have a campstove. We also have a burner on our grill, but I am not gonna lug the darn thing into that building every time I want to can, LOL!