Peter's solution is one of many temporary repair systems. You could also employ some swageless terminals to repair failing wire.
How old is your rigging? Most insurance companies will not offer insurance for boats with rigging over ten years old. If your rigging is nearing that age or older, you might want to consider replacing it and then saving one of each of the lengths to replace in the unlikely event of an observable weakness.
Our experience was that the Maramu was over-engineered in many areas, one of them being the rigging. The Amel is not a racer and the sail plan does not exert the level of stress on the rigging that you will find other designs have. If your rigging is good quality and is relatively new, you should not worry too much about failure.