Are 1994 850 wagon parts interchangeable with other models?

[newdad4132010]

Hello all,
I just purchased a 1994 850 wagon it does need some work here is a list of the parts I need:
1. Driver's side rear quarter glass
2. Rear hatch windshield
3. Driver's side headlight assembly
and a few other smaller items
My main concern is with the 2 windows does anyone know if they are interchangeable with other year/models. I called a glass company and they wanted like $1400.00 to replace both and since that is over twice what I payed for the car it is definitely too expensive for me. I would like to find replacements at a junkyard and either install myself or have someone install for me. Which brings me to my second question has anyone ever changed either of these windows and knows of a good resource for instructions? Thanks in advance for any help.