sr1200

Hey guys, lots of questions for you: I have a 2016 Silverado I'd like to do some mild offroading and camping in, but definitely would need to get the truck up off the ground (stock 4x4 height now) some. I ALSO need the front/rear to be able to handle a winch and an occasional motorcycle hauler on the rear hitch. We get a lot of washboard roads here so I'd need something that will be smooth on that if possible. I definitely don't need a race truck lift. 2-3" with a larger tire would do wonders. Recommendations? Would I need a helper spring in the rear when using the motorcycle hitch (about 500 lbs moto)? I think tongue weight will be about 800# or so.

Has anyone checked codes after a Range installation to see if there were indeed any codes to indicate it's use?