So theoretically I might find some defunct units over here?
,,,
Aero-Sharp was a solar inverter company located in Ontario, Canada serving residential and commercial markets both on a local and international scale; which included Australia.

While headquartered in Canada, Aero-Sharp was actually Chinese-owned as it was part of China AVIC Avionics Equipment Co. Ltd, a huge organisation with 100 subsidiaries, 24 listed companies and more than 400,000 employees.
Aerosharp Inverters In Australia

Aero-Sharp specialized in the manufacturing of transformer-based grid-tied solar inverters with power ranging from 1kW - 3kW. One of the interesting features of these inverters was dual Maximum Power Point Tracking on some models, which was unusual in inverters of such small capacity.

Aerosharp's products were commonly installed in Australia for a while in the late 2000's to early 2010's due to their low pricing point. Unfortunately, the quality appeared to match the price and there were quite a few warranty claims that may have helped bring about the company's demise. Aero-Sharp exited Australia (and the industry entirely) around 2012/2013.

Good luck finding some, they seem to have plenty of good parts that are usable for home made inverters.
I have also rewound transformers from PowerJack inverters too.
PowerJacks seem to have a habit of self destructing and can be found from time to time second hand too.
I just get a couple of the transformers unwind them, stack the cores to the size I want and rewind them.
Sometimes I have to take some laminations out of the centre to make the hole big enough, then if it is worth it I put the bit i take out on the outside.
Pete

Davros -I sent you a private message a while back.  
Please open it and take a look.