Oh this is bloody easy.
First id need as well some doll.. You know - its getting quite lonely now and then on desserted island.
Then id need some 4x4.. lets bring some Subaru Impreza. Not quite something you can pack, but well - no restrictions, no pig cops, nothing that stops you from exploring the island on 130mph...
And - i love driving while drinking. So some beer has to come with me.
So - doll, beer and subaru. Perfect combo to die lonely on island with a smile on your face