Suggested Sequence
1. Do you plan to install ZG flares, front air dam, spoiler, bumper change, new performance parts like aluminum radiator, wide/bigger wheels, exhaust, french/delete parts, etc? If so, fit these parts/do work before you strip the car to ensure they work and roughly line up with no interference.
2. Once you have this done then strip the car completely.
3. Address the body work first on stripped shell.
4. In parallel you can work on refreshing the systems (brakes, cooling, wheels, engine, lubrication, steering, ignition, fuel, drive train, wiring/electrical)
5. For reassembly, some like to install engine and suspension/wheels before painting, I like to do this after. Be sure to install the brake and fuel lines before putting engine and drive train in.
6. Do the interior before the glass and trim (except of course door glass and quarter windows which go in before the adjacent interior parts).
7. Put dash in after interior trim and windshield is in place. (put wiper motor and linkage in before windshield).