Exactly the same thing I did end of October. I am nearly complete with my interior swap. Went from a dirty tan (no offense to previous owner) to dark blue.
My car is an 85 325e. I've done an enormous amount of things since getting it end of Oct. Dash, seats, carpet, accel cable and pedal, clutch and brake pads on pedals, motormounts, waterpump, clutch fan, shifter (still working on that), antenna repair, door latch and door lock cylinder and a lot more.
Here is my bumper. Its an 86 IS piece.