I don't know if you need them, but I attached the directions below for the intake manifold. It has the torque specifications and tightening sequence included.
Also, I wanted to let you know the engine needs to be lowered to be able to remove the intake. Take a look through the directions and let me know if you have questions. Also, keep in mind that we don't know what caused the damage to the first intake. I don't want you to damage the new one.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.