Most of the links seem very tenuous to me -- which would be obvious since the two languages are separated by the entire breadth of the Eurasian continent and by eons. I thought there was a link between Basque and Chechen, is that correct? If it can be proved that Basque is related to any of the Dravidian languages we could then move with comparisons further east. The strange thing about Dravidian is that though they are mostly in southern india, there is one language still alive in Baluchistan -- Brahui. Finno-Ugaritic is another strange family, but I doubt they're related to the Dravidian or Basque langauges.