Hey Danny , welcome. A chicken or two is a great way to break in your WSM. The beer can method is an option for sure, but you can also just lay the chicken on the grate or put it in a foil pan. You can spatchcock the bird too and spread eagle it on the grate.
IMO...you want to cook it hot and fast , though....no water pan. I have the 18 WSM and I always cook chicken as hot as I can. It always comes out good. I think your 14 will behave the same , but others may know better. Good luck.