also you may want to research adding on an additional electric fan - try searching the supercharged/turbocharged threads since those may run even hotter; I think you can pull them out of other used vehicles? crown victoria? I forget. if you find a good thread, please let me know. If it were easy...
I’m no expert but those temps seem pretty normal to me esp if the outside temps are hot. Also, I wanted to mention the wind direction does play a part in cooling when stationary given the relatively low speed of the fan compared to say a 5 knot wind breeze from the rear to front of vehicle...