Don't think anybodies got anywhere near there yet, takes a while to get crew together, if u can get through past second crew member tasks.
On 2 sperate charcters doing the pearl quest, choosing different crew members for second crew member tasks, both have task locked at the final vist bit, even though its completed, you cant cash it in.
Maybe someone has some insider info on it, but i doubt youll find anyone who has played it yet
'Keep it Kool
'