Update: Significantly simplified and focused the question.
I struggle with managing my GTD project files because they contain a mix of electronic and paper-based/physical stuff. Some projects are basically all paper, some are all-electronic, and some are a mix of both.
- What kind of project tracking system/method will help me manage projects regardless of the media?
- Should I consider always keeping my future actions in an electronic format, even if all the other project information is paper-based?
- It's not possible for me to scan or digitize the paper and much of this data can't go in the cloud for security and other reasons).
- I use a fully-electronic, task management system for my GTD lists: next action contexts, waiting for, someday/maybe, etc.