Thanks Beans.
It does look like there is a guy on ebay selling them though. All (I would need to do is get the cars details stamped on:
http://stores.ebay.com/VIN-CHASSIS-PLATE-ACCESSORIES/TRIUMPH-/_i.html?_fsub=1859513014&_sid=44643784&_trksid=p4634.c0.m322
The one that I would need and be looking at getting is:
http://www.ebay.com/itm/TRIUMPH-STAG-USA-MODEL-CHASSIS-PLATE-CLASSIC-CAR-ID-NEW-VIN-PLATE-ESSENTIALS-/201510242859?hash=item2eeaf24a2b
