Looking for the correct handle

Hello. I moved into a new place and have 2 patio sliding doors that I want to replace their handles because 1 is cracked and I don't have the keys for either. After searching local hardware stores, I came up empty. So I came upon this site and found what I think are the correct replacements,82-055K, but I want to make sure. The C to C distance is 3 1/2". The door thickness is 1 1/8" and the thickness for what I think is my replacement says 1 1/4". The outside handle is also a little different but as long as it'll work I don't care about that. Any thoughts or help would be greatly appreciated.