How much to fix a Civic?

[Meg]

Okay so I'm about to get my first car (I'm so excited! No more rides from mommy! haha) and a guy in my neighborhood is selling a Civic, which is what I want, I actually found him on Craigslist and here is what he says:
This car is a 1992 civic lx with a 2000 d16y8 engine with 125,xxx miles on it also has a naxos exhaust and a shortram intake. The car has two kicker 12s in the back and pioneer speakers all around clarion head unit. It has 17 inch evoke wheels with low pro tires all around. It has a cracked windshield, bad ball joint, needs shocks and a wheel bearing that makes noise sometimes. Car runs good and sounds good

By the way I don't know this guy (he is around the corner+)

But anyways I know nothing about cars and don't know anyone that does so my question is: how much would this cost to fix? I googled all the different parts but I can't do this myself so I would have to take it to the shop. So an estimate of how much it would cost? And the even bigger question: is it worth it?

He is selling it for $2000 obo, I have $4000 and I'm thinking I could get it for $1000-1500 since hes been trying for a month. Also I really don't care about the speakers and would be willing to even give him them back.