Gippsland Aeronautics in Australia manufacture the Airvan. The Pacific Aircraft Company in New Zealand. Both these manufacturers make single engine utility aircaft, therefore if anywhere these may present some opportunities for FTO/FTE work, you would probably need to work in some other specialisation and have the FTE duties as a secondary role. You may need to keep an eye out for vacancies at these companies and expect to wait several years for the desired position to arise.