See my post in your Too Hot to Hike thread.
If it were me...
Poncho/Tarp. Main use would be shade during a mid day rest. If it only tops at 95F, I would skip the rest. But chances are it could be even hotter. If I had a cuben fiber tarp at around 3oz, I would take it instead of my MLD silnylon poncho/tarp.
My clothes would be RR Adventure Shirt, (if I was not used to this heat, I would wear a RR Eco Speed T under the shirt during the heat of the day), Eco Mesh Pants, Ex Officio long briefs to prevent fungus build up in the crotch due to sweating all day, Tilley hat, cheap bandanna and sunglasses. Bring the highest rated suntan lotion.
Food: Skip cooking if you can. It is only a two day trip. I do not, I need coffee in the morning. Cat/Pepsi can stove set up.
If no reliable water sources, you may need up to 2 gallons of water a day... if this case, dump any gear you safely can.
Sleeping: I would bring a BPL UL60 quilt. 11 oz. If low temps were around 70F, I would bring no sleeping gear but maybe a Montbell Ex Ultralight Down Jacket at 6 oz, just in case.
Lighest runing shoes you can find. Switch out your socks during the day. I usually don't, but if you are not used to these conditions, it is a good idea.
If you ever wanted to go Sub 5lbs, this is the trip. 2 gallons of water weigh almost 17 lbs. The more weight you carry in the heat, the more water you need. Catch 22. If I was doing this trip with you, I could easliy get under 4lbs base, and carry more water.
I have a dark complexion. Even if I have a good suntan, I take sunblock at altitude, and usually just hike in a T shirt. However if the temps get above 100F, I go with a long sleeve shirt. If night temps are cool, then a long sleeve shirt during the day and night. More and more, my only shirt is a RR Adventure shirt.