I remember being at a garage sale, and the lady telling of her Mom's FW - and that it was white and all. I got excited and asked to see it - and this is what she pulled out LOL!!
They usually aren't worth the cost of a service repair. Our one place starts at $80 and goes up. However when you aren't paying someone else by the hour - how much time you want to spend is up to you.
A quick look inside will probably help in seeing if anything is cracked or broken, because if it is, then it probably is junk and not worth messing with.