If you haven't yet ordered, I'd highly recommend ordering the console delete, which is the standard configuration (9N5), front bucket seats and nothing in the center... no center console, no center seat. You'll have a lot more room to do what you want... I have two Tahoes, a 2001 and a 2012, both with nothing in the center... had to take either the console of the center seat on the 12 as it is a civilian model, but I took out the center seat and have built in a platform for radio, cupholder, stuff like that. I find the console too confining.
Get the luggage rack delete too, truck looks cleaner without it.
Note that the PPV is a 2WD vehicle, if you want 4WD you need to order the 5W4 Special Service Vehicle, should be around $40,000.
See this site for more info. You may wish to consider the backup camera too if you can get it, the outward visibility to the rear is very poor... the pillars are quite thick and the liftgate glass is not "tall" enough to be able to see well out the rear of the vehicle.
Hope you enjoy it - I've been a bit disappointed with mine so far, lots of little things about it that bother me. The older body style was really a better vehicle!