I was in the same boat as you a few years ago and it’s slim pickings for those manuals. Are you looking for the manuals to look up parts or just to have on hand? If you’re looking for parts, try contacting Brasseur Trains in Saginaw, MI. They aquired the remaining K-Line parts inventory. There’s a website called legacykline.com. They have a K-Line catalog database and some other K-Line related information. Someone there might be able to assist.