The clicking noise is most likely him/her sharpening it's "beak". Very common and normal. Next time you hear it, check to see if it's jaws are moving at the same time. If so, everything is ok.
The housing is a modified glass front tv stand and stays around 80% humidity. I'm running a 125w MVB and the basking zone under the light is around 108f and sometimes will reach 112f. I just want to make sure the little guys not gonna burn up when he stays directly under it.