Hi Tony..Welcome to the GTO Forum.
As with suggestions to your engine etc I agree with the others.
If I can offer a suggestion..
In your pursuit of resto modding your 69' particularly in wanting to Judge it, refer to the following link...
1969 GTO Specifications - UltimateGTO.com
Most information you'd want can be obtained there especially Judge correct stripe kits for the color car you have.
Much GREAT information can be obtained from the members of this forum. While fixing the car up and should you want to keep it as original as possible you could also contact the GTOAA
GTO Association of America
The GTOAA have experts for every year GTO and by communicating with their 1969 contact, he could offer you invaluable information. I have learned TONS off of John Johnson their JUDGE expert by talking to him on the phone and emailing. We still stay in contact. You may also learn of places from them as to where to inquire about shops to work on your car.
The GTOAA site did list their consultants with emails but since reformatting their site, those contacts were not re-listed. You could PM Dan E. He is on the GTOAA board and is a member of this forum, perhaps he can get you in contact with the right person at GTOAA.
If you are going to invest in your father's gift you will want to do it right, and listening to the best will guide you.
Good Luck!