Good luck, I like the idea. Even though I will be Mr. Negative below, I really do wish you the best of luck. Anything you work on, IMHO, can be a fun/meaningful experience, even if you abort it
The journey is the key. The destination is incidental
------
The problem is.....
Content.
Even if you acquired fantastic scans for a lot of stuff.... What will you say about It? What can you say that *isn't* banal and trite? What can you say that *is* refreshing and new?
Collectors can suck my left one: there are websites to use to track games.
Then again, an illustrated collector's guide might be the best idea (since collecting has a lot of appeal these days)!
I'm not trolling... The scope and purpose of the book depends on who your audience is
(and that is a conscious decision).
For example, one infamous collector actually documented all the random ephemera (stickers/posters/suppositories) that came with TG-16 games. I thought that was pretty darn neat and I loved the level of detail. I'm not a collector, but I absolutely love knowing all those details/trivia. So, a "checklist" will be nice for some folks, but an "illustrated" checklist would be more broadly appealing (IMHO). Websites are a better medium, though, for this sort of project, since they can be updated and revised instantly....
---
The problem with folks volunteering content (reviews/blurbs/etc.) is that it will be of varying quality/accuracy/perspective.
Of course, that is assuming folks actually follow-through with pledges to create something.