Curse this fanfiction malarkey for making us read stuff :-) Seriously though, don't you think that one the top benifits of doing this is that you end up discussing and researching things that would never normally cross your mind?
Happy reading. If you really want to kick the arse of it then check out 'J.M Barrie and The Lost Boys' by Andrew Birken' - it concerns Barrie and his complex relationship with the five Llewellyn-Davis brothers whom he adopts when they become orphaned.
You have me hooked already on this story. Am loving the idea of a Dursley at Hogwarts - did I tell you how much I liked 'Two Dads?' hope I did - and Snape's ghost lurking there too. How will he get on with the other Hogwarts ghosts? So much potential, good luck with it. Hope you post something soon.