could get a decent thermostat, convert fridge, add fan and ya set for many a clutch
or cooling thermostat, + heating thermostat, reasonable fridge (glass doors looks the part), wire up thermostats, maybe add fan. hey presto bigger better version of those cooling incubators on the market
otherwise homobators are ok. probably make something similar easy enough, aint much to em
humidy in containers is important, not so much in the incubator (depending on your method slightly i suppose)
grats on the eggs