Definitely on the fence on the gravy pan in the smoker, I don't want moisture hindering crispy skin.
I usually roast up a few pounds of backs, or wings a couple of days ahead of time to make gravy stock so I'm not rushed on Turkey day.
You can catch the drippings in a drip pan. The key is to put a small amount of vegetable oil in the pan to start with so that the initial drippings do not get too hot and burn. That will cause a completely wasted effort to make gravy.
Personally, we make the gravy separate using this: