I really like the 164 - I have a 1994 Super 24V that I bought round about April. It's my first Alfa so I'm finding things out all the time and that's the point. As gibot123 has said, take somebody with you who knows the car, or better take more than one person.
Can't emphasise this too much.
I know cars in general quite well, but with any unfamiliar car you just don't know what to look for.
Others have spoken about the cam belt - quite rightly too but you can't check it except by looking at receipts. I've just changed the belts and some of the idlers and tensioners on my car. It's "doable" but is awkward and has taken quite a time with quite a bit of expense if you change all that you perhaps should. This includes the water pump since you've got it all apart anyway. Then there are the special tools needed (cost me serious money) if you want to do it by the book. You'll probably want to change the serpentine belt too.
Study all the advice in the thread.
If you are like me, when you get an "new" car, you'll want to try to make it better. Some Alfa parts are surprisingly cheap but others are really silly money. It's these little things that mount up and make the car quite expensive. That means buy the best car you can - somebody else has spent the money already and you never recover the cost as a seller. StuartHall's automatic might seem expensive (I've seen Cloverleafs go for less) but if the car is really up together as it should be at this kind of price, I'd go for this any day over a cheapie. I wish I had spent more.
One more thing - I turned down a 24V Cloverleaf because I thought there was something wrong with the clutch. The pedal was quite heavy to operate (and all the old hands will be chuckling as they know what's coming here
) but only returned quite slowly. I had visions of horror about having to pull the engine and do I-don't-know-what to fix it. Well it's meant to do that so don't be caught out like me.
I'm in Southampton and although I wouldn't hold myself up as an expert in Alfas, I've already got stuck into the 24V engine so have already learned a bit from stripping off the front of it and retiming the valves. If I can be of assistance by looking at a car in this neck of the woods with you, please get in touch.