Ok, made up a template from cardboard (from inside a coke box ).
They look just about a perfect fit. Perfect on the back, only question mark is on the front as the Bicentennial is approx 18-20mm deeper than the current plates (old fashioned 5 digit black plates that I want back in the VH when I get it back in the road).
Just concerned that they are a fraction deep in front of the air intake bottom grille. But I really think they will be fine. Unless anyone has experience to the other.
Also, I did not understand the info about the hole placement.