G'day Andy,
Good luck in Indonesia with the eclipse. I was hoping to go but as usual have left my run too late.. maybe 2017. I really enjoyed this video from up your way last year... did they sneak a look during totality? lol
https://www.youtube.com/watch?v=feR12pQ8dXc
For dark sky viewing and photos Western Australia is a great choice. A couple hundred km east of Perth away from the coastal lights is great. Further east and north and you get into the fringes of the wheatbelt where clear sky is the norm, especially late May and through winter. A few spots are super dark with only very minor light pollution dots on the horizon. You will be blown away by the southern sky at those locations. Example attached
Colin