Chris, I see you're on the east coast like me - just with a better beer selection. Something else to think about is driver side or passenger side. I don't know if you have an awning or not, but that is what predicated a driver-side opening for my tent.
Originally placed on the driver side, I found that the awning provided significantly more shade on the passenger side when were backed up to the shore, as is the norm in the Outer Banks. The following photos were taken about a year apart, but at roughly the same time of year and same time of day. The longer shadow clearly speaks for itself.