Hi Donald and welcome to the club.
You could get one from eBay. There are several. I have a Leaper that was put one using an adhesive attached to it.
You don't need a template as far as I know but placing it needs to be correct. Just have a look at my s Type 07 pate.As you can see is positioned with he head of the leaper on the end of the bonnet.
Regards,
Peter.