Welcome Russ
1) My car looks to be an early 65. Date code (23G) shows it is an early 65. July 23, 1964.
What does that mean for my car?
It means that when that particular Ford plant received the order for your car the worker guessed that they would be finished with your car on that date. Normally/often it wasn't a correct guess
2) Interior code is D8, which translates to White Crinkle Vinyl w/ Ivy Gold Appointments; Standard Interior.
What color should my carpet be?
Dash Pad?
What is accented/appointed?
Carpet was a green/gold color (ivy) - From other owners experience it will be difficult to match the original colors with what is available today. Thing there is a thread related to that subject here on the site
Dash Pad was Ivy also
Appointments = Believe just the dash pad, seat belts, carpet and
vinyl sill strips (changed since the car apparently was built in 1965 near the end of 65 production)
Example of carpet color
Example of dash pad color
Example of white with "xxx" appointment pattern - sorry could not find a white with Ivy gold example. Just replace the black with ivy gold part
The car is getting ready to be sent to a restoration shop to get the floor pan replaced as well as fix some body damage I found once I sanded the car down to bare metal. The shop recommended replacing the complete pan instead of patching the damaged areas with replacement pieces.
If you replace the whole pan you need to be concerned (if your restoring) that they will be reproducing all of the factory welds and final look. Over the last 5 years or so many shops have chosen to instead to leave the original edges in place (unless there is damage in those areas) and replace the panels without disturbing the welds and in turn leave panel dates attached also. Just something to consider