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I don't have any experience rebuilding the factory T25, but I have used GPopShop's rebuild kits for other turbos and can't say enough good things about them. I called to ask about RHB31 disassembly and the guy I spoke to off the top of my head knew what my problem was and how to progress on a turbo from a Japanese kei car, and when I damaged a seal during installation they broke down their only remaining kit to send me a replacement seal and then ordered more for their stock. I was very impressed with their knowledge and customer focus.
If the oil feed line broke, the turbo is probably scrap. It doesn't take much to damage a TB2566 beyond repair given how undersized they are from the factory. A momentary lapse in lubrication on a journal bearing turbo is typically fatal because the oil is the bearing.