Well It's one of the best nine walks of New Zealand. It's on my list from long time. Lets do this track which is of 80kms in total in like 2-3days max.. I'm planning to start it from Tasman end and finish it in West Coast(near Karamea). After that we can ride a bus to Punakaki or Nelson(if I took my car from Christchurch). Contact me and see how it goes its a good walk and most of it got huts to stay.