Well I came up with XVZNVM by taking your numbers and grabbing Word 14 Letter 1, as there are 20 words (or at least, groups of letters). Half of these are Roman numerals but I can't come up with anything significant (15zvn1000 doesn't mean anything to me), nor can I do anything with assigning numerical values to the letters or inverting them (Z=A etc).

Can't seem to get any further than this. Am I along the right sort of lines here?