Q1 : the Soviet mess kit .
Q2 : mag bar , tarp , cordage .
I was going to say flashlight , but believe it or not , contrary to common belief , its actually better to stay put at night , and move around in the day in the AZ desert , your going to get better sleep when the temp drops as well . Ever tried to sleep in the daytime during 100+ temps ? good luck on that .Yeah its hot , but depending where you are in that place , falling into or onto things at night is a bigger danger than the heat . Particularly in Cochise county . Plus , the dust trail from vehicles on a dirt road can be seen for miles in the daytime .