[MetroMPG]

Glad you decided to de-lurk. Welcome to the forum.

The rear skirts look good. I wonder about the front air dam though. There's some conflicting evidence that bigger is not always better in that department.

Phil (aerohead) has firmly repeated lately that the bottom of the dam shouldn't extend much past the lowest hanging components under the vehicle. Phil's advice is worth betting on.

I also had Hucho's aerodynamics book open again at lunch today and happened to spot a diagram showing that an air dam that's too low actually increases drag.

Unless you have the ability to test the vehicle in as-controlled-as-possible conditions before heading out on your road trip, I'd be inclined to go with a more conservative height there.