If you had these authentically re-created to exact standards, they should work for a left or right opening door by changing the position of the catch. I had to open the lock and do some filing to make it work. I did like the heavy duty brass keys.
The three screw holes of the Backset Rim Lock fit perfectly to the existing 150 year old three screw holes. What a pleasure to see the restored door looking and working as it did 150 yeqars ago.