Joe,
You mentioned the quicklinks not being even at the top. Do you mean on the summit? If you want to add a chain or in anyway make it a safer rap from the summit, as the first ascentionist you have my permission.
When we climbed the whole route we would usually rap from the old descent line, down the gully and back around to the base. This takes longer but reduces the risk of sending anything into the caves. I think a lot of people rap from the top of the third pitch.