Might want to check the 'shims' under the cowl. I replaced the wood blocks in my coupe and found that the cowl shims were non-existent. After I replaced the wood, I had to shim the cowl to get the hood to align correctly.
There are three (or four) round shims between the cowl and the splash apron.
Disconnect battery
You don't have to remove the body to do this, but you should loosen ALL the body bolts.
Also, be sure to loosen the steering support bracket (no need to remove) before trying to lift the body at the cowl.
Remove the GAV
Remove the starter push rod / pedal
Remove the gas pedal (screw on/off)
Disconnect the speedo cable at the torque tube (to prevent bending/binding cable)
I used blocks of wood and using a hydraulic jack I was able to lift the body enough to insert all the body blocks and insert new shims under the cowl.
Took some tweaking to get all the parts to line up again, but I got rid of MANY rattles and squeaks.
Go slow and watch for any parts that might hang up/snag/stretch/bind/break before lifting the body.
Just some random - probably overkill - thoughts