To build such humidor, you don't actually need a humidifier for each level; unless they're separated. An active system would be best as you'll avoid dry and damp patches most passive systems create.
To glue the parts together, I would use the same vegetable glue used when rolling the cap of cigars: no odor, no taste. You only need a higher strength.
Size wise, I would base myself on existing known humidors such as the Davidoff No.1 which holds between 140 and 170 cigars and with the following dimensions: 15 7/8" x 10 7/16" X 7 7/8"
To glue the parts together, I would use the same vegetable glue used when rolling the cap of cigars: no odor, no taste. You only need a higher strength.
Size wise, I would base myself on existing known humidors such as the Davidoff No.1 which holds between 140 and 170 cigars and with the following dimensions: 15 7/8" x 10 7/16" X 7 7/8"
