Parts you need:
8P0 821 469 - Wing Bracket Rear QTY:2
8P0 821 467 - Wing Bracket Center QTY:2
8P0 821 471 - Wing Bracket Front QTY:2
8P0 823 301 B - Bonnet Lid Hinge -Left
8P0 823 302 B - Bonnet Lid Hinge -Right
8P0 821 171 G - Wheel Housing Liner , Plastic -Left
8P0 821 172 G - Wheel Housing Liner , Plastic -Right
8P2 823 531 G - Lid Lock Cable
8P0 807 183 A - Front Bumper Guide
8P0 807 184 A - Front Bumper Guide
8P0 807 863 A -Securing Strip
8P0 807 864 A -Securing Strip
8P0 823 509 H Lid Lock with Micro-switch
8P0 805 588 L -Lock Carrier with mounting for coolant radiator - Comes with headlight sockets
Bonnet 2009-2011 Paid=£80
Normal Front Bumper with Grill 2009-2011 Paid=£100
Left Wing 2009-2011 Paid= £40
Right Wing 2009-2011 Paid= £90
Side Mirrors with indicates 2009-2011= £134 for both
S3 Rear Bump for Parking Sensors 2007-2011= £215
Fog Lights 2009-2011 = £28.99
Fog Light Surround 2009-2011 = £20
S3 Roof Spoiler Any 8P = £74.99
CE K Module =£165 Installed : Thanks To RS
Door J Module = £100
Read this:
http://www.audi-sport.net/vb/new-a3-s3-sportback-8p-chassis/118134-digzz-work-progress.html
That should get you started!