Since then I bought Factions for the Canthan Holiday, EotN because it was $10 and now I bought GOTY becuase I figured it would be more "cost-effective than buying another slot for a mule/future 'sin. Of course I bought the skill packs too

Since I have yet to complete a chapter and thus don't have HM I kind of promised myself I wouldn't go to Prophecies until I got my main char through either NF or EotN.
Now however I saw you can trade Saurian bones for party items in Lion's Arch. I've got at least 30 so I'm thinking it's worth the trip.
I know I "qualify" for the quest to get to Prophecies but will that get me right to Lion's Arch upon completion?
Along the same lines . . .
Would it be quicker to just create new characters in GOTY ?
TBH, I don't understand the whole pre-searing thing and how the economy works between new Prophecies characters created or characters imported from Nightfall.
I guess the bottom line is what is the quickest / most effective way I can get saurian bones from my lvl20 NF char to LA to get party items.
Also
Is pre-searing a total different game-style that I'll never see if I don't start a character in GOTY?