I've had some success with
car-part.com. Was able to source a fender and fender flare for $90 just south of Fredericksburg. Picked up, not shipped but they did offer to deliver to me for another $10.
I'm down in RVA, Chesterfield Auto Parts typically has some 3rd gens in the yard every month—I'd be happy to keep an eye out for ya. What color is your runner?