Tread carfully or you will get your feet wet[]
There has been problems with some properties on some of the islands, especially Russell. Where people have bought land and found out that they can not build on them due to drainage problems and also some people have bought houses that were built on the problem blocks before the drainage problems were identified.
Russell Island is the place where blocks were sold to unsespecting investers who later found out that they where below the high water mark. []Instant pool twice a day[!]

Definately agree with the other replys. As for travelling to the Sunshine Coast, it would be a fair drive and you would get sick of it quickly. The closest work area would be Hervey Bay where the tourist industry is the biggest employer.