upgrading tires

I have been moddin trucks and jeeps my whole life, but as I get older they get less and less extreme. From one ton Jeeps on 40's to lifted 3/4 ton diesels on 37's. Some how I find myself with a 2015 pre-runner double cab.

It currently has 245 Dunlap's (love the term yall come up with Dunflops). I want to keep my MPG some what in tack. Currently averaging 18-19 mixed driving.

I am thinking of 4" spindle lift or adjustable shocks and springs (less than 3")

The tires I have looked at include BFG KO2 and ST MAXX. I have looked at 255/85/16 and 285/70/17. I'm not attached to the stock TRD offroad wheels but I am not opposed to running them with or with out spacers.

My thinking is to try to find a load c 285 or load e 255 and try to keep width and weight down to maintain 16/18 MPG. I want an aggressive looking AT but road manors are a must and I live in the south so snow is no concern. What do yall think of this theory?

 

Daily driver prerunner 265 255 285 BFG KO2 or ST MAXX. for best mpg and handling.