To put into context the bottom of the coach side door to the ground is 10".
The bottom of the front bigfoot to the ground is 6.5".
The oil pan is about 8" from the ground.
The bottom of the rear bigfoot to the ground is 8.25".
The bottom of the pumpkin (rear axle) to the ground is 6.75".
The rear bigfoot is 5' behind the pumpkin.
So the summation is that dragging the rear bigfoot is not a big concern as you have an inset of 1.5". But I do still cross driveways at an angle with this.
I would love to hear from anyone who has dragged, and if they did I would bet it was a lot longer than the 2300 (further beyond the 5').
I am more concerned about the clearance of the DW's Avalon.