In Australia the lowering springs can be obtained from http://www.jamex.co.nz/
H&R or Eibach are also alternatives. H&R is available from TireRack at the banner on the wheels and tires forum. Eibach, and a bunch of exhaust alternatives, may be reviewed at http://www.carshine.com.au/
There are a lot of places doing clear tail light lenses, but I don't know if they ship to Australia or not. You might try a search on these.
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E