You cannot wait for your car to come to you. These cars are too rare and you will have to go to it. I too thought about selling my car first before buying a replacement. I discourage that process. Your new car will slip by as the VW buy-back process can take up to 2 months from the first initial registration and starting a claim to getting your buy-back date and payment. It's a straightforward process, but not a fast process.
My story: Saw the car I wanted Thursday eve. I'm in IL, the car is in Findlay OH. I called the dealer Friday afternoon and negotiated the deal. I had to work the weekend so I hired a driver to take wifey & I to O'hare airport on Monday. The dealer had a driver waiting for us at the Toledo airport and drove us to Findlay. We arrived at the dealership around 6pm, drove the car out by 7:30pm. I did NOT pay any sales tax at the time of sale. I will do that later when I register my car in IL.
The dealership put an OH temp plate on the car so we could drive home. I already had temp insurance cards with the car's VIN printed up from my insurance agent. Once I was back in IL I had to wait until I received the OH title to register the car and get an IL title (about 2 weeks wait time). As I financed some of the car through VW Credit, obviously the title has a lien on it. So when I went to the IL DMV WITH the OH title and sales receipt, I paid the IL sales tax, registered the car, got my IL plates, and the the IL title goes to VW credit as in IL one does not hold the title if there is a lien on it.
It really was as easy as all that.