I just got back from my dealer and asked my sales rep, who checked with Jeep. According to them, 6/2 was the cutoff for Quadra-Lift, every Overland ordered after that will have it. 7/6 (may have been 7/2) was the cutoff for the nav- everything after that gets the 430N Garmin unit.
Therefore, my Overland, ordered 7/10, will have Quadra-Lift and the 430N nav unit, which is just fine with me- that's how we would have ordered it had we known that the 430N would have been available on the Overland at all.
And since 8/9 is the scheduled production start of QL, I'm guessing the 8/4 est. ship date isn't going to be met.
I do have a VIN assigned and it shows as status D1, although no build sheet is yet available.