I'll tell yaâ€[emoji]8482[/emoji], from my experience over the last several weekend smokes, you can't beat a "fill in the blank"-can-chicken (meaning, beer, soda, apple juice, whatever). It's so easy and really keeps the meat from drying out, making the process very forgiving. You can do an SMF search for a process, or PM me and I'll shoot you some suggestions. Also, while a special Beer Can Chicken rack makes life easier, you really don't need it (unless one of your chickens has a shorter leg than the other).
One last thing, if you still have to buy your birds, buy at least 1 Cornish game hen. They are cheap; like less than 2 bucks. While they don't have has much meat on them, I really think they end up with a better flavor (my though it, less meat = more smoke penetration)
Best of luck!