Comparing old rings to new ones is meaningless outside the engine. the only way to confirm if rings fit is to put them in the bore.
The old ones will be worn and will have lost heat treatment over the years of running. Similarly the new rings have not been heat treated to fit the new bore until it has run in so you are comparing an apple with a banana basically.
Also rings don't really wear at the gap, the gap increases as metal is worn off the circumference, and the ring gap grows as the spring opens further.
