Hang in there brother. I understand the frustration.
They set a timeline, you sign your life away on the dotted line, and that should be honored in the highest regard.
That said, what is coming down the rail is likely THE most comfortable, capable and reliable vehicle ever to roll onto the lot.
My '13 is incredible. And it gets USED. It gets compliments anywhere I go, from the gas stops to those who I help winch out when they get in over their heads on technical trails to RVs tugged out who were simply buried on the local beach.
Crawls like a Mountain Goat on slick rock, A/C on, Sat Radio pumping, never even spilling my sodi pop getting vertical on "trails" that leave modded up jeeps and some stout Blazers sitting at the bottom scratching their heads.
Biggest "Mod" is airing down to 25fr / 20rr to smooth the ride, eliminate the wheel hop in deep sand. That alone turns it into a complete animal. Air it back up, hook up the trailer, fill the bed with gear and do 1000k of highway running in pure comfort. It spoils you, and makes the average driver look like a hero.
Good times are coming. Don't let a little delay ruin your experience before it even gets started.