Welcome to the forum! What a first post! It does indeed sound like you are well under way, and have a good grasp of the Fiero from they way you talked about the repairs.
If you had not read about this anywhere, make sure to check out the air intake for the Heater / A/C. Remove the fan motor, almost dead center under the front hood. Leaves collect in there when sitting, as well as mice love to make nests in there. If there is debris in there, it can easily smolder (for hours even) and catch fire. It's quite common unfortunately. Good friend of min in MN awoke to the fire department banging on his door when his caught fire. Here is THE THREAD