I followed your picture trail and MAN that is a beautiful car
I'm glad to see you kept it and are bringing it back to life. My 67 isn't quite that bad and is a driver right now, but needs restoration.
I have a 67 GTO that was in the same shape and was just a rolling shell. I've been collecting parts to restore it and will be putting the body on a rotisserie this winter to replace the entire floor from the firewall to the bumper, including the tail panel...
Then it will be set on the new frame I bought in OK and brought back.
Keep up the good work and get it on the road soon. Good luck with the carb adjustment.