Halfords or any good motor factors will sell you the kit.
The only thing i remember is the tool i had wouldn't work on 16v engines, but fine on 8v.
Do you need an uprated tool for 16v Wayne? or was mine just sh!t 
Standard tool should be fine unless yours was not very good. 
16v has uprated springs, it didn't seem strong enough to compress them.
It worked fine on the polo though.