I'm no expert but if I had a professional opinion it would be the following. Obviously the first thing you would do is completely delete the truck. Egr and dpf. That's a given. Next I would address the turbo. Again I'm not an expert but I can't imagine the stock vgt supporting 500+ hp. 2nd gen swaps are popular but it also depends on what you would use those 500 horses for. Towing, racing that kinda stuff. After the "air" mods you would address the "fuel" mods to match your goal. From there (more specifically after you delete) you would seek proper tuning and more or less that's about it. Of course supporting upgrades like studs and transmission would be helpful but that's a quick rundown. I can't do all your research but can point you in a good direction, one of many. Hope this helps. Now convert to cummins!