I´ve been driving my mk2 Skoda Octavia vRS combi for almost 3 years and modified a bit with h&r monotubes, eibach anti-rollbars and 18x8 inch Enkei RPF01 wheels. Actually I found this forum when I was looking for information about bigger brakes..
vRS has seen some tracktime, two or three times a year. Discs on the back are almost at their end so good time to switch them to bigger ones and that is a reason to byu bigger ones to the front.
Brakes should fit nicely with those light wheels, 18x8 wheels with 35 offset and 225/40 Continental CSC5 tyre was 17,1kg.