All,
Having had a look through a post yesterday about engine cleaner, it seem that a combo of GUNK and CD-2 Engine Detailer is the way to go. I have found a place in the UK were I can get GUNK from and have found a guy in the UK who can apparently ship CD-2 to the UK. Shipping is a little pricy though.
I have asked how much he can supply. If anyone is interested in getting some, let me know and I will see what sort of price it works out. It will be a more than from Halfords, however as we can't get it here anymore, it will be worth it.
Cheers
Si