You almost proven my point.
You at least have some information.
From any information, its possible in time that someone Might figure the stuff out.
Without ANY information, there is No chance nor record at all.
You're not really looking at the picture accurately. Imagine a scenario 40 or 50 years from now where so little information is available that it's impossible to extrapolate information from what you do have. Extend that to 100, 150 or 200 years? I've worked on machines from a mere 40 years ago and while I can figure out a majority of the functions, there are still functions that are still puzzling to me. Not because I'm untrained with engineering, but because the practices of today differ from those forty years ago. Just before I left the Archives, I was working on media with unusual notations. Even after extensive discussions with specialists around the U.S., there is no clue what the notations mean.
Are you telling me that you would rather have NO efforts at all? Letting
a good deal of history vanish?
No. I am saying that it would be a incredible waste of effort to do a half-assed job of it.
Or are you saying that you want to head up the project?
You know what? I seriously considered a similar project to this months ago when I started to reconstruct my Hang-On cabinet. The problem isn't that I lack the capability to accomplish this kind of goal. What I lack is the exact understanding of exactly what information a person needs to record in order to create reproductions and how that information should be compiled and stored to guard against obsolescence. If that last sentence didn't make sense to you, then you might not be the right person to apply to this kind of job. I'm not trying to be cruel or anything, I'm just trying to explain it how I think the problem really is.
I dont have the money to buy every controller known to videogame kind.
(even tho my collection isnt too shabby heh )
In the end? That is the probably the best way to ensure its survival. Even if no one does anything with it now, a reverse engineering project in the future can be accomplished when the requirements are realized.
But I can put in efforts in research, data/pic retrieval, etc.
If you wish. Even that is a big undertaking for just one person.

"The information that is complete, or largely complete, have been deemed of such extreme value that access to most of the documents were restricted (since you love conspiracies, that should give you something to chew on). Those documents were the most interesting in the entire collection by far."
If information is Incomplete, and, if this info could help to realize a better
world... then it should be let loose for all to see. That way, maybe someone out of the millions
of people Could help figure it out. Keeping it locked up is the sure way to complete loss.
Unfortunately, it's not my purview to do so. Sorry.
And really.. be realistic. Not having a complete algorithm to a problem may cause something
to be useless. But having a pic of a controller is very different. Its a simple device, which can
be figured out by visual clues. Maybe it wouldnt be absolute perfect match - but it would work
well regardless.
A battery is a simple device. However a picture of one would not give you information about its internal workings. A replica of one based on a photo may or may not work and might not be an absolute perfect match. If said battery isn't an accurate enough match, then said battery would likely not function well in its intended device. An obsessive arcade fanatic is likely to feel the same way about a control that isn't
quite like the original.
Right now, we need to get pics/diagrams of some of these rare controllers. If someone can
buy & disassemble them - then mechanically document them, then great. Till then, anything is
better than nothing.
That's great! But don't rush headlong into a project that leads you down the wrong path. Give it a lot of thought so whatever is recorded is accurate and can produce accurate components.