If you are serious, these guys are at least a week ahead of you/us/Pelican. They are working on more than just ventilators. I, unfortunately, have no skills to contribute.
https://www.projectopenair.org/
This is their 'collaboration' website. Link does not get you to the start of the page, but....
https://app.slack.com/client/TUTSYURT3/CUWCSK5LK/thread/CUWCSK5LK-1584310490.332400
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Who, What, When, Where, Why and How.
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