I just bought a second hand Amerique to replace my Smokette, which unfortunately rusted out. The Amerique I bought was missing the temperature probe, drip pan and casters. I paid CS their outrageous price for a new probe. I was relieved to find out that the drip pan is a standard 1/2 size steam table pan, which I found for less than half the $32 that CS charges.
I keep my smoker on a stainless steel table next to the grill, so I was not interested in replacing the casters and worrying about the smoker rolling off the table. The Amerique seemed to sit just fine without the casters, except the drip pan was scraping the bottom. I decided to make some feet to raise the smoker enough to free up the drip pan.
My solution was to use some thick nylon washers that came with another product. After some experimentation with various bolts in my shop, I figured out that the casters are on 5/16x18 threaded screws, so I got four one inch stainless screws in that size at a local hardware store, reamed out the nylon washers a little bit, and screwed the feet into the existing holes. I'm pleased with the results, as shown in the pictures below.