advice on my project

[stege.1.]

​any ideas on what size spacers i wood need 2 use on my 1.2 16v wen i put sport kit on , i have 25mm front 10mm bk wood thay b ok or need thicker , also is any diffrence if hubcentric r not as my 25 mm r and 10 mm ont hubcentric just wont every thing 2 look rite wen dun picks will follow ov b4 and after and is 35mm drop alround b 2 lowe 4 17 inch alloys i no bit ov stupid question but its my 1st project thanks john all advice welcume