Malapoa has a crime issue that won't go fast. Spend the money on good security.
Beware of the real estate agents, some are worse than the thieves. They come out of the same gutter. Most properties are overpriced by 20%. I know of some new comers have offered 50% and got it, so negotiate. Stay the course. (smile)
I recommend renting in Port Vila for 3 months and get street wise. Talk to other expats and get referals of honest people.