I also need to move money around and am worried about having a short time to get it all done. I've started so I don't get caught by Tesla's unforgiving delivery schedule. My EDD window moved up a few days ago, so I was taken by surprise.
It seems the closer you are to Fremont the shorter the time between VIN and delivery. One guy in the Bay Area posted today he got a VIN yesterday and a delivery date for today (gulp). Las Vegas is an overnight truck ride from Fremont, so it could be a day or two or three. For folks in the east it is typically a train ride to Chicago or Birmingham, followed by a truck ride to the destination, so they have longer to plan. I would recommend having the money available timed to coincide with the start of your delivery window.
Also, my utility company requires a VIN in order to change to an EV rate plan, then there's shopping for insurance. A lot to do at the end of this ordeal.