motor mount replacement is not difficult but it takes time and the passenger side is a pita, because of all the intake stuff.
I'd say transmission mount and those exhaust hanger mounts need replacement...a lot of oil on the transmission (which could be a simple fix, like the gear shift bellows, or a costly fix, like rear crank seal)
I agree a lot of suspension componants have very rusty bolts, rusty spring pans, rusty springs the car has not been in a dry climate.....(but it looks like new rear shocks, as those bolts are shiney new
new centre and rear muffler (with an amateurish welding job for the chrome tip!).
Overspray visible front and rear....has it had new paint? or some accident damage repair?
Interior stuff is expensive, are the seats good? (the leather/alcantara seat covers are expensive, like 1300 bucks expensive. Vinyl is about 850, then add the labour charge)
How is the engine running?
Transmission shift smooth? (notorious weak 2nd gear synchros, because people don't pause slightly between shifts and just ram it in)
When you test drive it, shift down from 3rd to 2nd
depends how 'high-end' the price is. There will be work to do on this car,as there is on every car, but mechanicals are fairly easy and spares supplies is good, if sometimes a little costly
the one free thing you get when you buy an alfa is the best marque forum out there, its like having your own pit crew at hand
check out the classifieds here too, often some good cars offered here by BB members.