Yes, I understand what you are saying, loved to work with waxies when I had them, they are one of the most unique frogs out there. And the thing with waxies is that it is close to impossible to get them, even wc and I really hope it will work out for you.
I live in Calgary, in winter it is 10% ambient humidity at home, but it is not impossible to achieve humidity if needed. Mist King, fogger plugged into hydrotherm do wonders. You can do lots of things with little creativity.

one more thing. I found that light spray of a tank once in a few days was really working well with them and on most of the days they would soak in a water dish.

regarding TB - that is not common. TB in most cases is species specific, but I did have mycobacterium Marinum in my colony ( that is how I lost them all). That bacteria is genetically similar to human TB, but it's not the same. Waxies are more susceptible to skin bacterial infections and respiratory infections, but same applies to any low humidity animal kept in stagnant and humid environment. One thing to watch though is stress levels and full spectrum light with enough UVB.