need some advice from fellow members preferrably someone who has replaced a fire wall. as you can see in some of the pictures i posted my cowl and the firewall are fairly rotted so i plan on replacing the fire wall and upper cowl with the AMD parts but i want to do it with taking as little as possible off the car

my question for everyone is how should i go about bracing the car and if i should make a jig for the whole car to sit on before i start taking it apart and what i should do to make sure my car is straight when its all done, im not exactly sure where to start so any input would be greatly appreciated and i have time before i start the firewall, i have to finish the trunk area first because its already apart, so any thing you have that mite help me please give me your thoughts (its my first restoration trying to get as much help as i can)

thanks
Bryan


71 challenger 440 sixpack shaker *CLONE* (71challenger 440+6 shaker clone FAST/my HS grad present)
03 mustang Mach 1 (daily driver)

11.35 @ 121.5 4 SPEED on F60-15s w/ 6/32 tread