Is this engine a diesel? Your typical 100lb/hr injectors will not work in a DI Diesel.
You’re looking at making over 150hp per cylinder, so I would look into piston, connecting rod and cylinder wall upgrades. Typically at that power level the cylinder pressure is enough to destroy any oem bottom end. Imagine you were making the same power per cylinder in a V8, you are going to be at over 1200hp, you’re not going to get there with many oem parts at all.
Another thing to look into is the valvetrain, 2 bar (about 30psi boost right?) Is going to need valve spring upgrades to keep from floating valves. The increased seat pressure may require upgraded valves if the oem valves are too soft and wrinkle under the tension.
Next I would look at is driveline, make sure before you spend any money that there’s clutch or transmission options for that engine that can handle the power. You can make all the power in the world but if you can’t use it then it’s worthless. That’s where the Honda’s were at in the 90s, people were making tons of power for that time but the transmission tech wasn’t there to really use it.