Well Im even more frustated at this point

As of yesterday afternoon when I picked up my snake, my UTHs had been plugged in for 18+ hours and were giving an ambien temp of mid 70's and a surface temp on top of the substrate at about 77 which made the cool side perfect ( as I understand it) and with the IR lamp, I was carrying a hot hide (probe on inside of hide) at 86. I thought everything was perfect.

Went to check on him (temps/humidity) as I was getting ready for bed and my cool side was showing hotter than the hot side. This caused a minor panic as I assumed that the the thermometer (digital) was failing. So I open up the tank and feel the cool side substrate and its warm. I then move the substrate out of the way and touch the glass and its hot, like dont want to leave my fingers on it hot. Needless to say I didnt know what was going on. I unplugged the UTH(s) and watched the temp throughtout the night. It actually held the temp fairly well (I covered the tank with a thick towel)

So Im back to square one so to say. Im ordering a TStat today and having it expidited to me. I have called every pet store locally and there are none. Hopefully that will help.

So Im thinking.....
If I remove the coconut husk and go with newspapers for lining, I will have an easier time with thermoregulation since there is not an insulation layer between heat source and snake. That will potentially produce problems for me with humidity (likely will). So I was thinking about adding a warm air humidifier to it. Many years ago I used one when I had Iguanas to keep humidity up and temp up. As long as I maintain humidity in the 60% range and the temps in an appropriate range, can anyone think of a problem with using a warm air humidifier?