Good Luck with this! Take a close look at everything including:
door rust (bottoms of doors rust through)
drive train vibration
front end "shimmy" (worn bushings in the suspension)
shock/spring wear
oil consumption
I've also noticed that the fuel pump likes to retire and that's a $300USD part here.
The water pump should have been replaced with one that has a metal (not plastic) impeller.
Overall, these are great cars but the truth is that they are expensive to maintain in terms of time and money.
Make sure you check for service records.. if they are missing, skip the car.
Ask the seller for the paperwork from the recent motor rebuild.. if that's missing, skip it...
Good Luck!
1994 540ia|Oxford Green Metallic|Lemforder|KYB in H&R|18" OE Staggered M-Parallel with Pirelli P-Zero