[Lemur]

Some really nagging questions:
1) Steelbooks don't have runs of 1000. MOQ 4000 would most likely be stickerbooks. And if you want numbered, stickerbook is the only way
2) Official artwork will need license from the game companies
3) If you're including the game inside you'll need a production run for the old games
4) The cert would be printed by you
5) The sealing also done by you
6) Registered charity just means you donate after costs. It's not surprising that some charities donate only $0.10 for every dollar collected after paying all their costs which usually include inflated staff salaries for the founders

Not meaning to be a wet blanket but based on what I've read, these are the big question marks.