i think you're rushing things, WO. you advised " I am currently in active conversations with Cáritas to finalize their registration" which sounds like progress and a "finish line" in sight. personally, i think your timeframe is unrealistic and i'd suggest you extend the submission deadline, expand the potential bundle, & continue a "slow and steady" progression to make it work.
otherwise, with the "urgent" tone, i'm afraid you'll find similar result with any organizations you pursue. i want them to receive help now, as well, but their need will be around for a LONG time. maybe "slow and steady" is the quickest way to facilitate our support? meanwhile, you could/should post a link or 2 to Cáritas Venezuela in the overview?
regardless of your decision, my thanks for your efforts thus far!