Charlie, there is some time info & such in that link......
As to the O P......that Smoke-eze rig might be kinda nice as you can hang things.....a lot like the PBC (Pit Barrel Cookers) that are all the rage currently.......seethis.....about 1/2 way thru the video shows how the stuff fits together to hang....
http://pitbarrelcooker.com/watchFor added rack space, either that or the Cajun Bandit are a good choice.....they look to be approximately the same price if you get the same general configuration.......
The preliminary question you may want to ask is "How Much?"
how much of a load of food would you need to do at any one time....there's really easy, inexpensive fixes to way increase what you can do just with one kettle.....here's JoCool's upper rack to add cooking area
You can load a lot extra on things like this.....I often use the "MacGyver Upper Deck Smoking Rack" (w/ flip-up feature) to add area..................
Here is how it fits together & in full load activity.....
This kind of additional space fixup is cheap, even free if you have a few spare parts laying around.....
.....or, just get more Webers.....