Among the items he took were the victims' passports, electronic goods, clothing, a snowboard, alcohol, cigars and even a good luck charm.
But Pinkney, 47, hadn't finished at the property.
Shortly after, he returned and poured an accelerant through a bedroom, the dining room, and the hallway before setting it alight.
When Fire and Emergency New Zealand arrived at the scene, the house was engulfed in flames.
Pinkney later paid an associate with cannabis and cash to drive him and the goods around as he flogged it off.
Pinkney caused at least $341,273 of damage to the home and $44,355 of loss and damage to the victims' belongings.
But while their insurance has picked up most of the bill, there is a total shortfall of $51,255, which the Crown is now seeking to be paid to the victims by way of an order for reparation.
In court, Pinkney pleaded guilty to arson and burglary. The charges respectively carry a maximum penalty of 14 years' imprisonment and 10 years' imprisonment.
Defence lawyer Paul Keegan said he may seek a cultural report for Pinkney, who appeared via audio-visual link from prison custody, to canvass his background.
Judge Gregory Hikaka convicted him on the charges and remanded him back into custody.
The case was referred to restorative justice ahead of Pinkney's sentencing on November 23.