Don't marinate the bird and don't buy a self-basting bird either. You can and it's even desirable to rub-pat the turkey with your favorite herbs and spices....I like a Cajun rub.
If it's the first time you're deep frying something as large as a turkey, don't fry it on a wooden deck or a concrete slab. The fryer should be on grass or earth...very level. You also should keep children and even teenagers away from the fryer. Always stay with the fryer as it needs a few heat adjustments as you go.
Hope you have a great meal.
ps. An apropriate fire extinguisher is a good idea as well.