Someone with an electric smoker will be along shortly.
For chicken, in general, to get crispier skin, set your temp as high as it will go. I believe that is 275F on the MB.
For a 4 lb chicken at 275F, you're looking at roughly 2.5 to 3 hours, give or take, until the coldest part of the chicken is at 165F internal temp. If any part of the chicken is still frozen, it will take up to twice as long.
Let us know how it turns out!
Ray