You might want to look into a couple of other "home built" systems. One is called a "Turk" burner; Turk burner, and the other is a "Babbington burner" http://www.google.com/url?sa=t&rct=j...CP9PPt3-SH5x7w.

I built a Turk burner for a buddy, and it works great, but is kind of a pain to clean. I'd planed on building a babbington burner for my new shop, but Mike said he'd give me this one so I jumped at it!

I'll take some pics of the one I've got. I think a guy could build one from scratch for maybe 1/3 of the asking price. I know I could!