I'm not familiar with brick electrics as I have never had any failures.

This advice applies to any car:

You should check the main hot lead coming off your positive terminal of the battery. It may come from the battery cable or from the connection at the starter. It will likely have a large fuse or a fusible link in it.

The alternator light symptom puzzles me. On a 20 year old Bosch alternator, you can expect failurs in the power and field wires, and with the ground to the alternator, but those wouldn't cause sudden failures of the turnlights.

Anyway

The next thing to check is in the fuse box with a test light or volt meter. Every fuse that is hot at one end, should be hot at both ends. Make sure that every fuse that you would expect to be hot with the key in the On and the Run positions are hot when the key is in those positions.