Where to start is the big question,I would sugest to try going south out of snapper creek(the main boat romp is there),head down around and just south of the power lines,good for all species mentioned.How big is boat and motor because this is a huge area.
You could try toing your boat over to the log dump on kauri creek and launching there,dont go upstream to the right of boat ramp as this all green zone,go to left and there is heaps of potential, cant give exact spots of course ,you will find the log dump of off the road to tinnanbar,off the maryborough-cooloola road.
Any more questions just ask will help where I can.
Cheers Craig