A similar question has already been asked and partially answered:
https://www.stovebolt.com/ubbthread...;Main=34213&Number=247663#Post247663The Hydra-Matic option was available on all 1/2 ton trucks in 1954. There is no way of knowing how many were sold (overall or by model).
I have a real 1954 pickup with a real and original Hydra-Matic but it did not come with two-tone exterior or interior. It will eventually have the yellow/white exterior and the two-tone deluxe maroon/cream interior and Ride-Control (Unison) seat. It was originally Commercial Red exterior and standard Pearl Beige interior.
Greg Hill has a 1/2 ton 54 pickup with deluxe blue/blue interior but I think his Hydra-Matic is an add-on (by Greg).
The only two-tone 54 interior that I have seen first-hand is the green/green option.