What is in the box?

I am about to purchase a new Netgear Router and need help identifying what is available.

One dealer has a WGR614 with a label on the upper right front corner identifying it as a "Special Edition model with two antennas"on the label below a photo of the router displaying the two antennas, is the model number KWGR614. On the bottom of the box is a list of contents of the box, it states that the box contains a WGR614v9. I am trying to determine if it is the original open source KWGR614 or a standard WGR614 or a WGR614L with dual antennas. The Serial Number begins with 1JN.

Another dealer has a WGR614, on the upper right corner on the front of the box, there is a label that states that the router includes an additional internal antenna. On the bottom of the box is a list of contents of the box, that states that the box contains a WGR614v9. The serial number begins with 1SV.

I have found another dealer with a WGR614v5 and v6 router. Would either of those routers accept open source firmware? Would they be to old to consider?

Does anyone reading this post have any idea which router the special edition model actually is?

Thanks