For 1969:
Road Runners and Super Bees with either transmission and without A/C were orange.
Any other B body (Charger, Satellite, Coronet 440) with four speed and without A/C would be orange.
Any A/C car would be turquoise.
Any non Road Runner or Super Bee with automatic would be turquoise.
So if the wagon has a four speed the engine would be orange. If it has an automatic or A/C it would be turquoise.
No exceptions by plant.
An H in the VIN only tells you the car came with a 383-4bbl. It does not tell you which version, HP or not, the car received. All HPs were H code; not all H codes are HP.