Good choice. If you want more info, read up on any of the numerous tire threads.What are the best highway tire for the 200 series? I'd prefer comfort and quiteness on the road in addition to quality.
I recently switched to the Michelin LTX tires - https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Defender+LTX+M/S&partnum=86HR8DLTXXL&vehicleSearch=true&fromCompare1=yes&autoMake=Toyota&autoYear=2013&autoModel=Land Cruiser&autoModClar=.
Would you prefer these over the factory Dunlops?