using air tools how long do you think to install ground control s and new struts. How long for just the fronts?

i need to know a time frame to see if i can get in done in the garage in between my dad puttin hooker headers and a dual 3" SS flowmaster exhaust on his 69camaro and him fixing the door on 10 second streetable 67 camaro..

you can see how i dont get first priority with the SVT


1998.5 Diamond White Pearl SVT (#4725) custom exhaust/intake k&N/mod'ed y-pipe slotted rotors/greenstuff pads/SS lines cougar trans/FSVT shift tower/Torsen 16lb. flywheel 18" Velox VX-8's with some rubba bands