Update...
I got the sides welded on and then realized that the back wasn't flush with the bottom. So, I cut it out, ground the welds down and rewelded it. Then, I put in the piece that will be above the door.
Trimmed out around the top of the fire box and left the sides long enough to weld a handle in.
Got the wheels on, put the smoker cabinet on, did a few measurements, and realized that I had another problem to fix. Originally, the owner wanted five inch steel wheels, but I talked him into rubber wheels. The problem is, they're five inches taller. Overall height of the smoker would have been85 inches and my garage door is 83 inches. So, I took it apart, cut out a section of the frame, and put it back together.
Then, I moved onto the grill...
Spot welded the hood...
Welded and ground it all down to make it pretty...
And framed out the front.
Hopefully, tomorrow I can get the grill completed and move back to the smoker.