Most of that is scaremongering just to drum up business for the garage, I take mine to the local council MOT testing station, they don't do repairs for the public so are not intrested in silly advisories, just honest advice. FYI, you can find you local council MOT testing station on Google.
The front 'anti-roll bar drop links are a common wear item and very, very easy to fix, I had that 'coil springs corroded' on and mot advisori a few MOT's back when I used to take it to a Toyota Dealer' some of the crap they used to come out with was so unbelievabe, they shut up when they relise you know what your talking about.
Anything under the car is going to have some rust on it, the spring are a common scare tactic, they will ware out before they break.
So I think most of that if not all of it is just Bull Shit.