Haha. Trust me, it IS 50quid’s labour. Take the entire thing apart, (everything apart, screen off and everything), desolder the part, and resolder the new one on, reassemble everything, wonder where all these extra parts that don’t fit in go?
There are youtube videos of it done – they’re long and very speeded up…. Watch one carefully and think about whether you really trust yourself to do it all properly 🙂
PS. It’s called a “DC Jack/Socket” if you want to googlize it.