Last 10% takes 50% of the time

I think one of the keys to successfully taking a car down to nuts and bolts is an intimate knowledge of the parts of Mopars and a particular platform. My Dad's friend has a shop that restores mostly Mopars and mostly of those are E-bodies. He can tell you every single part, where it goes, how many, and how you assemble it in order, ....
Like Al, I have messed with Mopars all my life and you have Josh Owen who has been through a lot of cars because of derby. There is a lifelong familiarity. It would be much harder for someone who hasn't ever had a Mopar and doesn't have the experience.
That is just one part of it. Like Josh said, pictures, notes, labeling, and storage are huge. I think I have about 6 totes (the black ones with a yellow lid) that you get at Home Depot just for Arthur's Duster, I have 4 for my 70 'cuda that I put on the back burner for the Duster, and more for my other parts, all labelled. I have a 10x12 storage shed with 2 racks of shelves that these are stacked in. I have some of the totes that have the parts I am using next in the garage. I call it my mini warehouse. My Dad is selling some of his land off and will be building a mega shop and I plan to move closer to him. We are collaborating on the layout. We are not restoration experts and it won't be a full restoration shop, e.g. paint booth, but it will have a clean room, apron for sand blasting, storage room, 4 post lift, 2 post lift, mezzanine, hardware room, .... This will help tremendously. It will beat trying to do everything in a single car bay and a 10x12 shed.