I think the recommendation of keeping volume day to two exercises is sound, especially for an older guy. Your squats can adequately drive your deadlifts if you are training them hard enough. If you want a little extra pulling volume, do it on the intensity day in the form of 1 or 2 five rep back off sets at a reduction from the weight of your one all out work set.
Ex: Deadlift 5 x 405; rest 5 mins: 5 x 365.