I wouldn't take the temp much higher than a DTH of 82F with the NTL reaching into the mid to low 70's. The humidity you mention seems to be in a good range. Just remember that these are starting points with each animal being a little different. The humidity should drop off naturally as the NTL is reached. You must insure a "drying out" period which should happen with an NTL. We find that too much humidity on a constant basis is not appreciated. Thier natural habitat experiences a rainy season with RH reaching 100% but that is not constant year round. Our humidity (70-85%) is sufficient to not require misting, however we also provide elevated water bowls for drinking. When we take them outside for exercise, they get "rain" from the hose.
CraigC