Hi Sarah,
I'm very sorry to here about your Fiero experience. This is a bit late for this time, but if you ever want to buy another Fiero, do this when you inspect it: Peel back a little of the carpet in the corner of the trunk. If you see any rust on the underlying metal, expect rust on the rest of the car's metal.
If you are not going to swap to another frame, as Fierofool suggested, consider selling the car parts individually instead of just selling the entire car for parts. For example, your seats look very good, and since it's an 84, they will be speaker seats, which many Fiero owners would like to have. Also, consider selling the parts on Ebay and/or
Pennock's Fiero Forum, so you can reach a bigger audience.