i would like to get a E30 for "classic car" restoration. i'm more experience in e34 matters. some questions that i have after some research.1. differences between early 1983 and post-1987 cars in malaysia market?2. what year did E30 has galvanised body panels?3. which one doesn't have spare wheel "seen" from behind?4. which one has the side indicators in fenders?5. which is better 2 door or 4 door versions?6. will the bumpers (both front and back) interchange with all the model years - related to question (3)?