Thanks Jay.
I have no problem drilling holes, but naturally I want to get them in exactly the right position. The Plus 4 badge is mounted with the pins and nuts so 2 more holes don't worry me. I think I will make a template first. I will also make a photocopy to play about with a little to see how I think it should go.
Interesting that it seems that it is either one or the other and not both that are fitted. I must check to see if the pins are the same distance apart.
Does anyone have both?