No need to remove anything except the hood, once the hood is out of the way the engine will slip in from the top without difficulty in less than an hour if your car or lift are free to roll. If you are working on rough ground I wish you the best of luck, you'll need it. Your car is a unibody, the fenders and grille support will unbolt which will do you no good. The radiator support, firewall, and inner fenders are welded to the frame and each other, don't mess with them. If you have a car hoist and already have the front suspension and k member out then putting it in from the bottom makes sense, otherwise it is hood off and slip it in from the top, there is plenty of room to do it and the process is described in detail in the factory service manual.