I'm now in cooler climates so the hood went back on and it is running fine, even uphill. After the head gasket and a good radiator flush I'm sure it will be fine, if not I may install some hood vents and auxillary fans.
North of Reno I lost trailer brakes. My fairly new Maxbrake unit went black. After poking around with no luck I called Jay at Maxbrake. He helped me go through a diagnosis and we determined the brake sensor cable was bad. He helped me get the unit into limp mode, where I could use it manually. Then he overnighted a new cable to Twin Falls, Idaho at my cost, over $70 shipping
It was fairly flat land to Twin Falls, so it wasn't too bad. Got the cable installed this morning and all is good.