Well Stevie, (for my 5 toea's worth)
First of all, I'd read a bit of history about the country going back to the early colonial days of Capt.Moresby, the turn of the century and on. Self government and independence. Read Post Courier (PNG) Online, read wings of gold and Balus triology. This should give you a fair bit of background information on the country and civil aviation.
Also, have a look at PNGair website as there is a fair bit of info there also.
Contact Chimbu Chuckles for his comments as well as Womera himself.
A really great 'stick and rudfder' place to fly that sorts the men from the girlies and the experience gained is invaluable for an aviation base from which to progress.
Yes. Can be dangerous, but then so again a lot of country's can be. Even parts of Australia or NZ.
My last suggestion is that if you can afford to do so, buy a ticket and visit the place for a week or so for a look-see. Visit the Aero Club in Port Moresby and talk to the guys there. Visit Airlink, look at their operation, meet the crews, ground and air have a jolly good time and make a final decision. Remember the old chinese proverb, the first step is always the hardest.
Regards. Sharpie.