the bottom of my tank just busted (old) so im going shopping just wanted to know if its a good idea to get this stuff or should i go a different way, new please help.

-20 gallon glass tank, mesh top.
-zoo med 50-60 gallon uth & 30-40g uth.( so i can get proper heat to the whole tank)
-50 wt. infrared light to keep on 24/7
-forest bark ( no luck kepping up humidity with aspen)
-2 thermostats, one for each uth(cool side 80, hot side 90?)

and last time i went to look for thermostats couldnt find any. any suggestions of what kind and where to go. Please, please help, thank you.. much appreciated.!!!!!!