Unless such temperatures can be constantly maintained then there really is no point attempting to keep Aneides as they will simply die. Heat stress is a well documented fatality in plethodontid salamanders. Temperature governs reproductive, feeding and hibernation behaviour. In the wild these salamanders are able to move deep underground to escape heat. In captivity they do not have such opportunities.
Humidity is also important.
Being plethodontid or lungless salamanders, the exchange of oxygen and waste gases through the skin demands a moist environment. DO NOT close off ventilation points to increase humidity. Always ensure there is excellent ventilation. Crickets should be gut-loaded with carrots, oranges and other nutrients. Food can be dusted every other sitting with a vitamin supplement such as Rep-Cal.