I found my walmart Uniflame clone on craigs list for $20, but I was very lucky.
If you can find a kettle used, that's the way to go because you get a lid and a 22.5 grill, plus other parts that might be useful.
New 22.5 grill $12-$16.
New Kettle lid $?? + shipping.
Handles top vents, and other parts $$??
Even new, the walmart kettle starts looking pretty cost effective at $40.
The hinges are a real plus, but it takes some modding to make them work, trial and error on your part. Also, that little wire basket that I hung on the front of the barrel is turning out to be very useful, way more than I imagined.
I'm certainly not trying to sell kettles for walmart by any means.