Made a decision. Had a VIN assigned on Friday, and the deadline was today to schedule a delivery. I didn't have a confirmed buyer for my current car (and Tesla trade-in was about half), so I called in to find out my options. As we know, the call center is all over the place with what they say they can do, but the story was that the only real option was to release the VIN, he would place the account on hold for 1-2 days to make sure the same car wasn't assigned, and then would be placed back in the queue. I asked about a longer hold, but he was quoting the 90 days from the order date as the longest you could keep a hold. Said he would "get fired" if he did more. Also, was told the next VIN assigned was a take it or cancel the order situation. So, I am now going back into the queue. He did make it seem as though it was better for him to manually release it than leave the account to go to the "I'm Ready" button. Though he also indicated that I would only have a few days to click that anyway.
It is all very strange the variety of answers you get, but I feel like it is now in fate's hands. If I get another VIN in December, I guess I'll be taking it. Hopefully, if nothing else, it gives me time to sell my current car.