Selling on trade me too but will sell on here for $300, retails for between $600 and $800 depending where you go:

Ni-Trac7 8500 Pro Cross Trainer - In ChCh
I bought this but it has hardly been used as I now use a gym membership so selling cheap. Must pick up, you can break it down if you like as it is already put together or pick up whole. 

**I will also throw in some free weights, a gym mat and yoga ball if you buy now** 

The Ni-Trac7 8500 Pro Cross Trainer is a high-spec Elliptical Cross Trainer designed for a comfortable and sustainable workout. Featuring an ultra-smooth elliptical motion - you'll feel like you're walking on air! 

Key Features: 

16 resistance levels (electronic adjustment). 
24 programs including preset & user programs. 
Advanced multi-function control panel. 
Hand pulse heart rate monitor.