Its fairly easy as long as you know how to use the tools correctly. most wings u will find u have to unbolt the headlight, but if u have to unbolt the headlight 9 times out of ten there is a bolt behind the bumper so u will have to take that off or loosen it enuff so as to get to the headlight bolt .
As for finding all the bolts its trial and error, Most wings have 3 or more under the bonnet on top of the wing 2 or more under the inner wheel arch and sometimes in the crease were u open the door i hope this helps :D
Paul
August 2011