The tail lights and headlights are all interchangeable on the 129 series. (1990-2002) I would think seriously about purchasing an SL that has been wrecked, there are plenty of cars out there that are in good shape, maybe one with higher miles to make it more affordable? I have never done body work on one of these cars, but just from what I see while working on mine, any kind of damage will effect it structurally due to the built in crumple zones and uni-body construction. Good luck!
Brian

__________________
Brian W. Heitman

www.MBCA.org/northtexas

Join MBCA!!!