The dealer I ordered through (the day before you) currently has 110 vehicles on their lot. I just did a quick check of a few other dealers around me and that's about average. I'm in Metro Detroit, so there's a lot of dealers. The only one I checked that wasn't like that had 1023 vehicles in...
I almost never follow the door card pressure on my cars. That recommended pressure is a compromise between comfort, performance, and economy. Because I give more weight to performance, I usually go a bit higher pressure, making sure that I am well within the limits of the tire.
I ordered 5/19 as well, and also haven't gotten a build date yet. I ordered at a large dealership, and priority code 10. I've got my fingers crossed that I get a build date this week since they're scheduling production for every week of August right now.