Don't do anything to it, seriously. The more stuff you add on it it the less reliable it will become. Any electrical components you add the more stress you put on the car's electrical system leading to issues down the road.

Clean it up and drive it, mayyybe if anything new shocks and springs (i'm sure it needs shocks anyways) and possibly lighter wheels with a good set of tires. With 60 or 70 series tires on there a strut bar isn't going to be all that much improvement, if any.