91 Oldsmobile 98 parts interchange w/ 94??

Hello eveyone,

I'm new to the forum and new to Oldsmobiles, I have a 91 Oldsmobile 98 Regency Elite. I found someone with a 94 Olds 98 Regency elite. He is done with the car and parting it out. I need...

Front Passenger side marker assembly (turn signal light)
and the front passenger fender

And the price is right I wouldn't mind getting extra fuses, relays, anything that will fit my car.

Can anyone tell me if they are interchangeable? I would also welcome advice about what to pull, I really think I can get just about anything off this car very cheap.

I really appreciate any feedback anyone can offer