It looks like my next n+1 is going to be an old Raleigh Mustang from 1990 or so that's been sat in a garage in a poor state for about 20 years. Before getting my hands on it, what are the sorts of things people think I will need to replace? I'm guessing tyres and tubes as have been warned as such by the owners, but in a bike that was in a working state when last used, will I need to do much more?