Tinny. The Daru Hilton that you and I are familiar with was burnt down years ago.
Daru is questionable as a stop but not out of the question. No one has suggested an alternative location so I'm guessing there aren't any other options worth considering.
It is the only normal Customs entry port west of Port Moresby.
.....then the next day do Daru, coming home via some of the outer islands (such as Murray and Coconut).
I thought entry had to be at Horn Island, not the outer islands without special arrangements?