Just FYI, ventilators have to be built in semi-clean room facilities from parts that don’t outgas, unlike cars or most consumer electronics.
Clean rooms can be set up relatively quickly depending on the actual rating. Many operations already exist that have clean rooms. So it becomes a matter of finding someone that would be willing to take on the existing work with facilities already in place. There are lots of contract manufacturers in the U.S. that could easily take on this work.
I still don't think the hurdle is that high.