try just getting a simple spray bottle and mist the enclosures as nessesary. thats the most simple inexpencive and working solution there is.
I agree but without anything covering the top of the tank the humidity will just go right out the top and you will have to mist multiple times a day.
Get the top covered and mist once a day and you should be fine
1.0 Mojave Spider BP "Merlotte"
0.2 Normal BP "Maryanne and Tara"
1.0 Normal BP "Xander"
0.1 Pastel BP "Freyja"
0.1 Red-Tail Boa "Sookie"
1.0 Amazon Tree Boa "Stackhouse"
2.0 Moon Crabs "Dunbar and Santiago"