If a DRW truck is needed to do what you want it for then get the DRW truck. It's not as if you have a choice. Weight carrying, handling, stability and safety. Yes, it's a must for a 4300 lb dry TC as adding in your items to travel will put it over 5000 lbs. Not done yet as there will be passenger etc weight also in the cab. DRW with that weight will be near it's max also. Some brands of trucks of the same model segment can handle weight much better than others. Especially high off the ground weight.
Another downside to add to the above lists/posts is you will be replacing 6 tires instead of 4 and at Australian prices. DRW trucks usually average at least 1 mpg less fuel economy and that's an added expense. Snow, ice, soft sand, etc are like a plague to DRW trucks unloaded but not quite as bad with a heavy TC on. What about insurance, license or registrations costs for DRW trucks VS SRW trucks in Australia?
