Don't spend 50 hours on a take-home for an interview. Instead, email the company and very politely explain that they're delusional. You probably won't get a response to that either, but at least it takes less time.
Got the job. 57% increase in compensation. 550k/year combined.
Totally worth it.
Only negative is it's months later and my right shoulder still hurts a bit. Getting old sucks.
But I don't interview at companies unless I really need to get in. If it were some lousy startup and I'm interviewing there it's because I am hard up and need the job or it's tactically where I need to be next to get where I am going.
Basically if I am spending the time interviewing I am probably willing to do whatever it takes to get the job.
But yeah, as another commenter said, they gave two weeks and it seems like a multiparter.