We have a base model 97 850 wagon. Ours did not have keyless entry (no control unit behind glove box).
We just got a used control unit and keyfob from a 96 855R. I installed the unit, programmed the fob via the key on 5 time method.
The fob works, it locks and unlocks the doors, however if the ...

Ball park, what are you looking to get for them, without shipping ( I have someone near you to pick up and ship to me).
I'm loooking to spend $400 or so.