I think everyone has a humi similar to those you've shown...great beginner humis.
A few well-placed dividers and you can fit ~100 cigars.
Take out that analog hygro; a round digital unit should be a direct replacement.
The humidifier can still be used. Take out that foam and replace with a pantyhose bag of Heartfelt beads. I went as far as to drill several holes front and back in my humidifier to appease OCD. The small tubes of beads work very well when space is an issue (buy from Heartfelt or make your own).
Whatever you do, make sure it seals well before you use it. No bueno seal: send it back. You'll thank yourself.