First of all, I've got to thank The Post Apocalyptic Inventor and Flowering Elbow. Most, if not all of the research presented here is from them and not myself and I've linked to their pertinent YouTube videos.
What I am doing here, is compiling their research into a set of notes for my own use that I thought I should post here too to share with the rest of you.
On TPAI's channel there's a lot more videos dealing with this project, But, as with any research, he goes down a couple of blind alleys and some of his ideas don't work. As someone who's following along and "stealing" his best ideas, I get to skip those steps, and just present here his findings that proved correct.