Those are Y spoke wheels. I don't see the underride protector but maybe its just the angle. Are those black things on the front of the hood for scaring deer?

Looks like the 4.6 has 1/2 the aero package. Its missing the front bumper area and the rear bumper area. Also, I've never seen the rear stock flares used with the rear aero package flares like that.

Its hard to say without more details especially the prices. Myself, I like to buy as close to stock as possible.

Good luck in your search.

Supposed to look like this: