Most 147 Training will offer places to Joe Public if available , inc places like Singapore and Kuala Lumpur , but the managers are poor at replying and will only reply at the last minute when they find out their course is not fully subscribed . There are some places listed on the approved list that do courses for which they do NOT have approval so do be careful. Also bear in mind that some places do not allow Joe Public to attend hangar visits etc due to security pass issues , so OJT may be virtually nil .
It may sound bleak but I do know people who have done it for large aircraft such as the B777 so good luck . A good starting point maybe Brunei.......
If you have any succes do let us know ..