Patent 4.578.967 Storm Door Lock

Good Morning

I just disassembled the lock in my storm door, for which I do not have a key and is in bad condition. I could replace parts or the whole thing, I am inclined to do the latter. It says on it "patent 4.578.967" and it looks similar except for some cosmetic differences. I will verify the measurements, once I find them in your web (where?). I may need three of them, with matching keys. Please let me know where are the measurements, if you can do the matching keys, and there are available, parts or whole.

Thank you, Roman

Thank you for the post.
I have seen the measurements in the diagram on your site, but they are not enough if I wanted an exact replica. For example, the distance from the center to spindle to the top (or bottom), and similarly for the distance of the hole of lock itself or bolt so as to match holes in frame, etc. However, it may be the case that your lock fits the whole in the door well enough (the distance between the screw holes that hold the housing, is almost the same).

I am tempted to get one and it it fits then get two more. Can these things be returned if they do not fit at all?

Thank you, RF