Welcome. These cars can be incredibly rewarding if you throw yourself into the ownership experience. Can be incredibly frustrating if all you are looking for is transportation.
These is so much DIY you can do if you can simply research online and follow a list. Lots of support here on this forum.
So what was the cause of the oil leak? You don't mention the mileage -- BMW autos usually don't last much past 100K without a fluid change.
I LIKE OLDER BMWS, PLEASE HELP ME
Fern Green 99 M3
, Conforti Shark Software, Conforti CAI, Dinan Exhaust. Stamped LTWs, 235x40 square, OEM Hella heads, ///M
Pedal Kit, Clear Corners, OEM Rear Spoiler, CD43 stereo. MRegistry listing here
Le Mans 2002 M5
, Black/Titanium, Rogue SSK, Dinan exhaust, PSS9 coilovers, Euro rotors, iPod integration. MRegistry listing here