How much rubbing with 255/80r17 on factory wheels +30?

I have really enjoyed ready through many of the threads. A ton of great information. So much so I've found it to be slightly overwhelming. I have a 2014 TRD sport DCLB. I have purchased a 3"front and 2" rear lift. Planning to get spc ucas. Leaning towards 255/80r17 on factory wheels. Hoping to keep the front mud flaps. I'm an Illinois flatlander. I drive on a lot of gravel roads which is the main reason I prefer to keep the front mud flaps. Wouldn't be upset with minimal rubbing at full lock and flex, but don't want to rub turning into a parking space. Am I on the right track? Any guidance /advice is greatly appreciated.

 

Welcome. You shouldn't the offsets IMHO.