i just say about the humidity due to ours most the time runs around 80-90% most days after the rain hit the hot ground. i had 4 hanging and mold started to grow 3 times i cleaned with peroxide,used Cinnamon, antifungle spray and pure alcohol and i had to bring inside where the A/C was running but my plant room stays 85 degrees but the humidity is around 50% ....so when i say high i mean like 75-90% thats it.
I cant wait to see the progress of your project!!!
mike