i am using lancer since 2007, bought it zero meter back then. the more i drive it, the more i fall in love with it! in 5 years Alhamdulillah the car only required only and only regular maintenance, i.e. oil change, air filter etc.
go for the 2007 model IMO, 2-3 piece touch-up isn't a big deal if the rest of the car is in clean condition and mechanically perfect.