Update: I have read several comments from Taco owners asking about these wheels. I found the below information and wanted to share.
I called a Toyota dealer in Arkansas and talked to a very helpful person in the parts dept. He gave me the part numbers for the rims and step bar on the Tacoma TSS model (as shown in my previous post). You can only order these parts from around Texas to Arkansas. TSS was a model only available in that region. My dealer in Georgia cannot even access these parts in their system.
Wheel Part #: 00012A125401 ($248.75 ea) / does not include tires
Step Rail Part #: 00012A127205 ($465) / see closer view picture in newly attached photo
On another note: I found some alternative 3" step rails from Iron Cross (Matte Black Color) for $249/ free s/h here: http://autocustoms.com/p-721-iron-cr...Cab&submodel3=
Due to the quality and look of the factory TSS nerf bar, I am going to spend the extra bucks to get what I want. It looks like it is larger 4" bar.