With exhaust id go with flow master super 44. Sounds mean as hell. Lighting, you could just go with what you like. Fog lights, light bar, custom halo headlights its all up to you. Audio, any head unit is pretty good now days but sony and kenwood are my favs. If you looking for speakers infinity makes damn good ones but they are kinda pricey. Just do your research on what sound your looking for. As far as lifts go first you got to find out how big you wanna go. Rough country is the best bang for your buck. Not to expensive and it is a decent lift. Obviously if you want the best your gonna pay for it so just figure out what you want and go from there. Basically figure out what you want most and then see how much you wanna pay. Think of your truck as a blank canvas. Just picture what you want your truck to look like the go from there. Good Luck!