I followed the mapped route through there about a year ago, a lot of the way the track is fairly obvious but it's not much more than a wallaby trail really, I lost the track a number of times but it wasn't a big deal to make my way back in the right direction and eventually find it again.. The track wasn't taped but from memory there were occasional cairns
Hut-5 down there is interesting..
Edit: looking back at my GPS route reminded me I lost the track in the same area on the way down and the way back up, it was a bit of a scrub bash through that section, not really a big issue though, the circled area: