Cooking at 350* will get your bird done in about 1.5 hrs. If you are able to obtain crispy skin, i definitely would not wrap.
If you can pin point the time your wife will be home, have your smoker pre-heated and get your birds on at least 3 hrs before she arrives. You should have at least a 30 minute rest time if you allow 3 hrs. It should not take any more that 2 hrs at those temps. That's been my experience.
Bubba Keg / Stumps Baby / Super Fast Yellow Thermapen / Lodge Cast Iron Grill / Coon Ass Pizza Oven