Can you read the by-laws? And then see if there is any kind of policy manual? The bylaws may state how board meetings need to be called (e.g. 72 hours notice, email notification etc) and when the agenda and supporting documentation needs to be distributed to the board.
If supporting docs are not provided prior to meeting, it is absolutely okay to table a matter until the board feels like it understand the potential decision.
Are there any board committees? A Finance committee or executive committee, whose job it would be to do a “pre-read” of matters and make a recommendation to the full board?
As far as donations, you are calling this a “coop” and I am not entirely sure what that means. A typical 501c3 nonprofit board has as part of its mission to steward the organization’s resources. That almost always means fundraising. If the board does not believe in the mission strong enough to put its own money there, how can they approach other funders and donors and ask them to do so?