So I finished the main storyline and both DLCs a long time ago. I just hopped into the game again and I wanted to acquire the Viper School Gear. But looks like I was a fool and I sold the kaer morhen armor and also didn't get the diagrams for viper school armor. Is there anyway for me to replay hearts of stone again with my current armors, swords and get back the kaer morhen armor and get viper school gear diagrams?