I'm just a little curious with all the good advice being offered that LKinnon is continuing with the post.
If I may ask the person what experience does he/she have, and are you IFR or VFR rated ?
It sounds to me that there are issues to be addressed in your quest to prove a point. Assuming you have addressed the matters of: Aircraft Insurance, HF radio frequencies, Fuel provisioning, Maps and Charts and I can confirm that all the Oz-Runways stuff is out of date. Performance charts for the C206 in tropical weather, are you familiar with % power available at runway elevations over 5,000'? Customs and Immigration, have you secured your Visa's as yet? Aircraft security and personal security issues, and the awesome responsibility of looking after any passengers. New GPS data base to encompass new procedures starting in a few weeks for IFR arrivals and departures. Do you have VFR terminal charts? again the Oz-Runways stuff is ever so out of date.
I sincerely hope we don't end up reading about you in the last and final post!