Because italian is fun
If you need it to hanlde a heavy load, you aren't going to get as much lift as that pictue of the black truck. You may want to start looking into Fabtech, Skyjacker, and Superlift. They all make a decent lift for your truck that won't require a Solid Axle Swap. Then to accomodate the heavier loads the only adjustment you would have to make is to buy some heavy duty leaf springs for the rear. Something with a higher load capacity. However that is going to make your truck ride VERY rough and it won't reach full potential off road.