Excellent story.  You took what was best in tP mythology, added a wonderful original character, and filled in the gaps with some amazing embellishments on existing characters.  (I love Sam the family man.) 

Good prequels--the kind that keep you on the edge of your seats but still stay true to the show--are almost impossible to find, and you did it wonderfully.  I'm envious of your talent as a story teller! 

I also think that this is a story that begs for a sequel.  And if the story itself isn't begging, I am!