I think it's entirely normal to want to get rid of anything that reminds you of your ex. It means that you had "enough" and are not waivering on that decision.
So far as the papers go, why not take them and use the information to write a list of boundaries for yourself? That way you can get rid of the papers that mention him by name and still have a reminder of what you went through and are determined not to go through again. Just something to consider.
It sounds like you are doing great! Hang in there and stay strong.
