K11 1.0 brake upgrade/ replacement

I’ve recently replaced my micra’s brakes; pads, discs and calipers but had to restore the carrier as it is discontinued by Nissan. The car sat for 6 years a while back and everything was ceased and extremely rusty. Although now the brakes work the sliders rattle in the carrier which is irritating to say the least when driving along, I was wondering what are my options in this day and age for a full brake replacement from a different model with no modification? Do the K12 brakes fit it or another model?