Hi, I'm new to this forum.. but I need some help please! This is for all the experienced BMW drivers (which is most likely everybody on this forum haha

)
Below is a link to the current ad.
1995 BMW 318i widebody
this is a craigslist ad that is in my area (Seattle) and I thought it is a decent deal. It has a wide body kit on it which I really like and regarding the scratches on hood and roof... I can get paint done for a pretty cheap price (friends that work in the autobody business) and thought that this car was really nice (for its price).
The owner is asking for $3500 (USD) but I'm sure I can cut it down.
But a few concerns I do have is how much should I expect on maintenance? I hear oil changes cost quite a lot for BMW's but I'm not an experienced BMW owner so some insight will be helpful. The interior looks quite clean and the gas mileage isn't that bad (much better than my current 1998 4runner).
Can I get your opinions on this car? If I should go for it or not. I am currently in talks with the owner (I have not seen the car yet but I will keep everybody updated on what he says).
Thanks a bunch!! The help is very much appreciated!