Danny has a good point on the design of the fan blade strongly favoring flow in one direction. It has also been my experience that fans prefer to pull through a resistance and exhaust into free air. I took a look at the Vintage position and found that the spare tire makes that area tight. I don't know how often I'll carry the spare, but I want to leave that capability in place.
On the topic of Cars and Coffee. I am really looking forward to doing more of them down here. The Audrain museum in Newport has them every couple of weeks through the summer. I went to one in 2019, it was their Tour de Elegance, we had a great time. in 2020 they kept the attendance down to 250 and they were booked up in minutes. First one this year is at Fort Adams on May 2nd. Registration starts April 26th. I'll check into it and get back to you.