Awww Dang! You got an unmolested stang, which is unheard of. Congratulations! And welcome to the forums.
if it were me and my car id start focusing on all the 30yr old rubber and replacing it. Things like ball joints, A-arm bushings, control arm bushings, door and window seals, engine hoses, brake lines.....just get the car revived road worthy and in between all that clean the car up with a good wash and wax. Maybe polish up the head lights.
Over in the build project threads start yourself a build thread and keep everyone here updated with your cars progress.