I have one of those grills!
I have that same lid on my old gasser. Best gasser I've ever owned, and it was a no-name Wal Mart find for $75 (half off the original $150) at the end of the season about 5 years ago. I went back to get a 2nd one, but my boss had bought the last one. :sad:
Even though it's a no-name, it makes killer food and did a pretty good job at butts. It is neat because it has two
circular burners. One inside and one outside, so indirect cooking was pretty even. I could hold it at 250 for as long as the gas kept up. But it's sat neglected for about 3 or 4 years now, since I bought the Egg.
The grates for the grill are porcelain coated. It is maybe a little bigger then the 22.5" Weber kettle. The grate is 2 parts, like a donut. You can take out the inside grate and the grill looks like a donut. It came with a wok, and even better -
a cast iron dutch oven. 
You set the dutch oven down in the donut hole when you remove the inner grate. So you could dutch oven cook over the small burner and still have a big circle of cooking space over the outer burner. :eusa_clap It has nice shelves on each side of the lid, and a couple of shelves under the grill. It has the basic shape of a Weber kettle, but is heavier. The only gripe I had about it was the hardware used to hold the wheeled legs on is plastic, and not too sturdy.
IMHO if a "good" company would produce this thing, it would be a tremendous hit.
I've been looking at the lid since I joined this board, wondering if I could use it on a UDS. You'll have to keep us posted about how a UDS does with that lid. If it works for you, I'll be making a UDS soon.
