Low and slow for maximum moisture retention. And a wet brine for 4 hours with salt water. That’ll plump the breast and aid in moisture retention. Then a top coat of seasoning with little to no salt in it.
I’d run 225-250°. You’re probably going to run 3.5-5 hours at that temp. And a nice wood to enhance the meat through smoke. The skin will be rubber. So drop it in a CI to crisp it and then chop the skin cracklings onto the sliced meat.