Originally I saw this post and passed it by since I had no help to offer at this time, but have been asked to post.
As most of you know I've sent allot of years collecting paint marks and such (think I placed the first paint marks on a show car about 1982 or so) but unfortunately we have not found original examples of all the different models and applications. Often the paint marks were not just related to the year, supplier of the part, application and plant but often changed one or more times during the year.
Early cars are at a disadvantage since their build sheets do not include any paint identifiers to help us out all these years later 
Over the years I've seen a fair amount of reproduced driveline stripes on early K codes but will not pass on or suggest using any of these. Would rather not have a mark than have something copied from another unverified resource.
IMHO we have TOO much of this as one owner puts a mark on their car from someone else's only to have it reproduced over and over again. Perkin’s 70 Boss was the first example of this. Once it made its way into print those same paint marks ended up on all kinds of cars, since “who knows they are right for my car???” The owner that said that lost points for applying them to a 69 KR
Also please understand that just because one car had a mark on the car no way guarantees that the same mark was ever placed on another car. On the cars I do place markings on I typically only place marks back that came from that particular car or that have been found on multiple cars from the same time period, plant and cars equipped the same.
At almost every show I find at least six cars that have marks that either never came on cars from that factory or someone got colors from somewhere but had no idea of how (method, pattern and process.. even the right hue).
I understand it can be frustrating these days as everyone figures we should know everything and it should be available at the click of the mouse. Hopefully someone will turn up a handful of original cars (don’t want to base stuff on a single car if we can help it) that we can evaluate and come to some conclusion.
Stepping way down off my soap box 