We have over 15,000 on the way this month (some are spoken for). Yes, do reach out!
Some folks actually did do this in April, just with 3D-printed adaptors: maskson.org and pneumask.org. They don't have built-in exhale filters, though, which limits the utility.
I sent him the link. If he gets back to me and his hospital system is interested, perhaps we could arrange a call. Would your HN profile email be okay for reaching out?