DLM270-
You must be one of the very first cars out of the factory! You might even have Elon come by to congratulate you (he did that when I was there a couple of weeks ago). If so, have him sign the visor or something. The tour will be amazing, but you may be so excited to get the car that you'll remember nothing from the tour. There was a whiteboard along the way that lists the record # of builds in a day (the number was 109 when we were there). They will load you on a tram, the best seats are those at the front of each car, but all will give you a great view, and they will stop at a number of points to let you get out and see actions up close. You'll go by Elon's desk that is out in the middle of the production floor, surrounded by a number of engineering and manufacturing desks. His is obvious, only in that it has the Motor Trend COTY award on it. Otherwise it looks pretty much like all the other desks next to it. I was told this was actually his working desk and not something set up for PR purposes only.
Pay attention to the section with a large number of what looks like florescent tubes, as this is where the inspections after paint occur. The robots picking up the drivers seat and placing that inside the car from the passengers side without hitting any other items in the car looks impossible, but just makes it. Anyway, this will be better than going to Disneyland as a kid, and we are all enjoying it vicariously with you!
Like I said before "to him who has been given much, much shall be required". Let's see those pics!!