1. Gold Coast are not putting in hial for 14 approaches. They don't have the real estate for it. Unfortunately, this doesn't help. As has been stated the problem at Goldy is vis more than cloud base
Surely there is enough room there to put some sort of lighting in. You have the runway and some open space there at the end. Without that it makes the whole thing a bit pointless as the you will be in the situation where the DA is low enough but the rain puts the viz is below the minima.
I suggested earlier on in this thread as to why they can't do a RNAV STAR that leads you right into an abbreviated ILS at 5 miles?
That will get you away from the houses and the hills and will be available for all.