I used 3 4x8’ sheet of 2” thick xps foam board, 3 rolls on 2” foil tape, INKBIRD ihc200wifi and ihc308wifi controllers, 12v30a power supply ( https://a.co/d/g1fEOYS ) and
2 peltier units
https://a.co/d/6EexLH7
1 dehumidifier
https://a.co/d/4TBqf29
the hardest part was getting the drains...