I'd be real careful in filling out that new bill of sale, you shouldn't have to do that anyways the guy you sold it to should give hime one. DMV does a chain of custody, that means when you sold it to the 1st guy the new owner becomes responsible for things like tickets and the like. The guy you sold it to must then fill out another bill of sale to the next (newest) owner and he now becomes responsible. I you don't include the 1st buyer then YOU could be responsible for anything that may have occured with or to the rig.