Stop in for a cup of coffee
I never realized they ran the vin format the same that early ...I always assumed it started in 67 (well I have never had a car before 67)
but a "P" second digit should mean GT, L is for the dart line.
not sure about D (must be an early A thing)
My 68 is LH23B8B LOL and the B-body is RS23U0E which is the same format as his early dart. that's cool