Ditto here, no need for a basketI just form the beef into a loaf and smoke it right on the grates of the WSM.
Originally I wanted a basket too, but then I realized how much of a PITA it would be to get a meatloaf out of the basket that I got over it.
Here's a Brinkmann one.
http://www.brinkmann.net/Shop/Detai...C-1000-4&seriesname=Charcoal Equipment&id=769
"Nickel Plated Steel Basket"
I bet you could find something locally...you may want to look at a storage/organize your stuff store or the organization aisle at HD or Lowe's. They have chromed bins like this to hold things in your pantry or office that I would be willing to try.