Juan...I admire your efforts in attempting to define the meaning of the "word".
But I have come to posit and believe that "word" used in this biblical context is a symbolic representation for what must have been truly unique about Jesus...his genome. No other definitions or explanations about these opening passages of John make any sense to me any more, other than this explanation.
Jesus came to that time from the future to show us what we all must become. And that time is running out right about now, in our time, I believe.
Before His "genome" (e.g. human version), He existed. So, what is the problem?