Italian Gardens is-to my mind- the best panoramic pictures book, even infront of the large ones.
Beside the cam and the pictures its the special printing and the people who helped him make this true.
Whats the exaxt size if the film and how long could it be?
How long was your film? Changing after every shot?
Which technical data has the Panoram 3A: lens, exposure times, image-size, filmlenght.
I am sure you will find someone who can repair it.