Seems like you would've been better off with a 2WD SR5 Premium if you wanted a fast, plain looking 4Runner.
Would've saved a ton of money and more importantly(in your case), weight. Plus, that transfer case isn't exactly helping you with getting the most power to the wheels. I'd understand if this was an offroad race build, but there's clearly no intent of going offroad either.... To each their own I guess. Have fun!