If you've not yet locked down your turkey cooking method for Thursday and you're still open to ideas, I'm got just one word for you: Spatchcocked. And if you're afraid of cutting out the backbone of a turkey, see if your local Costco has the already butterflied and marinated turkey I saw at my local store today.
Butterflied Turkey - Salted - The Virtual Weber Bullet
A whole salted butterflied turkey, aka spatchcocked turkey, cooks quickly and evenly in the Weber Smokey Mountain Cooker. Makes for a great presentation!
www.virtualweberbullet.com