What year "heritage package" would be appropriate (a link to 1959 is given in a post above)?

The Chevrolet Truck Specification publication is on-line for almost all years.
https://www.gmheritagecenter.com/gm-heritage-archive/vehicle-information-kits.html

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.