firstly go
here
and read my post about the 1.1 mark 1 3 stud alloys
Also you can get Dare J27's which look like this:
Secondly its up to you, if you get alloys you will want to drop the car.. drop it as much as you want but bare in mind that up to 40mm you can use just springs but over 40mm you will need a full kit.
Go for a bodykit or just get a valance or splitter which fits a mark 1 but its generally up to u.
On my 1.1 im getting a VT kit, 15's, 40mm drop and thats just the start
If your after a good price contact Gaz aka GSMotorsport from
G.S.Motorsport he will get you good prices