even if you tried not to sand it all off you would still have to reclear the whole thing..so that means sanding the whole thing and it would the STUPID to try and blend in that silver when it all has to be cleared anyway
use some 1000 grit paper and wet sand the top with warm soapy water. When you get down to the silver on the graphics go over the entire truck with 1500 to get it ready to be re sprayed. Be sure to not hit the corners and bodylines too hard because you will go down to metal really fast. Take it to a painter ready to be sprayed and save some cash. I hope they masked off the jambs and under the hood so you dont have to mess with all of that.