90's Audis and BMWs are a great choice. early 90's Benz' are indestructible but are hideous.
id look into B5 audis and e36 BMWs you can get a E36 328i, Manual, RWD, Leather, Power seats, ect... for like $6k
also Harbor Freight sells scan tools for OBDI and II I have them they were like $35 a...