superb. you have a keen eye for detail and are very focussed on small things. it would be great if you could provide some evidence as to why they should be repro. closeup pics and a more detailed explanation why you think the decals are repro, would be of help.
typically in a factory that makes things (eg GT factory or any other industrial manufacturing plant for bikes and bike parts), you can make whatever you want and in different colors etc.
Hey. You're so close to having this bike built up. Can't someone here help you with a set of wheels and other parts to get it done? You wanted it as a kid, would be great at least to try it once.
Hey my friend. The investment principle I mentioned is described in a book that some investment banker wrote in the 1920s. It doesn't say anything about onza porcupines. The book probably costs just $5 or so, on amazon. https://en.wikipedia.org/wiki/The_Richest_Man_in_Babylon