I just pulled some of the stock stuff off of my truck. I have the mud flaps, which are free to a good home, you can just pay shipping or come get them. The rear ones are definitely cracked, but if you are trading in your vehicle or taking it back to stock, its not a huge deal.
I also have the step rails, they have a few scratches, but are overall in good condition. $100 OBO +Shipping or local pickup