Anyone bought the kit and done it, i cant seem to find any info on the process, ive stripped mine as the bearing collapsed and cant seem to get the bushing and bearings out.

Email them, they sent me instructions. Same as other pedals so google nukeproof service.

Bearings you can just drift out but the bushings are a pain as there is a lip which prevents you getting access. I found a bolt that had just the right diameter head and used that. You may also be able to use a bmx pedal axle as the crank thread diameter will let you screw into the bushing.