Steering box/unit rebuilding troubleshooting

Hi everyone, I own a 2013 Suzuki Jimny JB43 that is currently leaking power steering fluid from one of the gaskets on my steering box/unit. I've attached a picture of my steering box/unit coated with some talc powder to highlight the leak. I'm planning on buying a repair kit to seal this leak. Does anyone have any references regarding repairing or rebuilding the steering box/unit? I'm not sure if I need to outright remove the steering box/unit before using the repair kit on it, so any leads are highly appreciated.

Thanks!