Rate1
This link will be able to show you the current aircraft fleet as registered to Sunshine Express.
OzFlight Regional Airline Fleet Search - Sunshine Express
There AoC permits them to operate RPT services to/from Brisbane, Bundaberg, Gladstone, Hervey Bay, Maroochydore, Maryborough and Thangool.
However I beleive it has been a long time since they have operated some of those routes. Other than operating the Brisbane-Maroochydore shuttle which I definitely know they still do, thats about all I can help you out with.