>I forgot to ask will the Nikon 2x version II work with the >Nikon 28-300?
No! The Nikon TC's will not even mount on the 28-300mm.
>Or can it be made to work.
Personally I wouldn't bother. The Kenko Pro 300 series TC's will mount though you will likely not be happy with the AF or the optical performance. There might be an interference problem with the rear element of the lens and the front element of the TC that I would check before even considering mounting a TC to that lens. Good Luck and Enjoy your Nikons!