Geez, if he brought it to Georgia and put it in my carport, I believe my wife and I could get it done in 5 months. This is provided he has all materials (harness kit, wire tubing, wire tape, friction tape, clamps, tyraps, etc) and the special crimper needed to make great crimps to pass over to Donna and I with the car. I would expect the interior to be out completely, but engine and tranny installed, but not leaking. Doors, windows, hood and trunk lid would have to be operative.
Funds would be 1/3 down when delivered with car and all materials. 1/3 at 60% completed and remainder at pickup. You deliver and pick up. Must keep insurance on it at all times. Photos will be taken daily when work is being done. I am 71 years old, but still working on my 2 classic 1966 Corvairs and my 1968 Camaro Coupe. I can still climb under a dash with moving pad laid on the floor and still can get out easy enough. Standing up is the issue. LOL.
Being retired, I have some time on my hands. Plus, the extra $3000 to do the project would be nice to add to the savings account. I put the plug and play harnesses in my 68 Coupe so I have knowledge of how harnesses are layed in. So as long he is going all classic wiring, and only adding new fuse box, it will be just running wires, protecting them and securing them similar to the AIM installations.
I would invite OP to spend a week in Georgia at the beginning to learn some of the easier harnesses on setup and installation. That way he could learn techniques of wire stripping, terminal crimping, terminal installation, harness protection and ty-rap use techniques.
Assuming coupe, with small v8, manual transmission and console with factory gauges, I would start at:
1. Rear Body Light Wiring Harness to under-dash harness connector.
2. Front Light Wiring Harness to firewall connector
3. Small Block Engine Wiring Harness for Models with Factory Gauges to firewall connector
4. Under Dash Main Wiring Harness, Manual Trans with Console Shift and Console Gauges to front harnesses and rear body connectors.
These would be added as working in the area:
5. ??Air Conditioning Wiring Harness, with Low Blow Switch??
6. Sail Panel Dome Light Wiring Harness
7. Camaro Coupe Trunk Light Assembly & Trunk Light Extension Wire Harness, Coupe
8. Glove Box Light Assembly
9. Ash Tray Light Wiring Harness
10. ??Camaro Power Convertible Top Wiring Harness??
11. Cigarette Lighter Fuse Adapter Harness
12. Console Wiring Harness, Manual Transmission with Factory Gauges
13. Power Accessory Lead Wire Harness
14. ?? Speedometer Warning Wiring Harness (if speedometer is speed warning equipped) ??
Note: I did not list items that were listed in the 67 complete AAW wire kit.
Now, the big deals will be all the changes he wants along the way after things have gone to the point where harnesses come back out to do more changes. The changes all have to be thought about and implemented into the harnesses before the harnesses are installed. My list above may have covered the possible changes for wiring, but not instrument panel or console changes. I could list electrical changes to my 68 that were generated by a desire for an option on my coupe and there were quite a few of them. Just my led taillight panels required new connectors and a hot 12 volts at all times. It was easy to plan out the change with harness out, but all changes had to be done with harness installed to get the connector positioned right to protect and secure them.
I guess I have given him a basic plan on how to set up his plan on doing it himself. Also listed most of the miscellaneous harnesses the complete AAW wire kit did not list.