It will be hard finding something what your looking for here. People tend to stick with their sport or ZHP e46's. best bet would be autotrader, cars.com, or eBay. And check the classified section.
Instagram : Krystian_E46
Owner of many E46's :)
[Currently own 2004 M3, 2005 AA 2.5 Kit ZHP(SOLD
), S54 Sedan, 01 330ci and 1 Coupe 1 Sedan 1 E46 M3 parts cars]