That is essentially the feature of the “good” thinkpads. You can replace almost anything, but the whole thing is built in this weird upside-down way and replaci

That is essentially the feature of the “good” thinkpads. You can replace almost anything, but the whole thing is built in this weird upside-down way and replacing anything that you really want to replace means that you have to take the whole thing almost completely apart. On the other hand if you read the official procedure for that and take inspiration from that, the only tool you really need to take it completely apart and assemble back is literally an cheapest swiss army knife which includes philips screwdriver.