Thank you, is it possible to know if the engine harness has been changed?There is no guide price for cars that are around 30 years old because they're pretty much fully depreciated by the time they're 20 years old, and the majority are already in the junk yards. The price comes down to what a buyer is willing to pay and what a seller is willing to take. That usually boils down to some sentimental value and the condition of the car.
The rust you see is not the extent of all the rust. There will be much more that you will not see. 94 MY cars will have the M104 which is a beautiful engine, but be weary of the EFI wiring harness biodegrades by design and can cause electrical issues.