over size piston rings ?

Hi i have a 1.0 k12 micra which has done 96000 miles. doing a compression test on it I have found pressure well down which I am putting down to worn rings. would like to know if I can get over-sized rings for this engine so I can glaze bust the cylinders and fit oversize rings to bring up compression? dont really want to re-bore cylinders due to cost of new pistons etc. any help would be great. thank you in advance.
 
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