OK, couple of options for you....
Try ringing Shannons Insurance, they have a pretty comprehensive list
Try CAMS - no good if they're not CAMS affiliated though...
Or... Theres a mag which i think is Unique Cars or something like that, all advertising of cars for sale, but it has a good list at the back.
Or...... back of your performance ford mags
Devil Yellow VUII 5.7L
VPII Calais International 5L