Dibs on your microfibre cleaning kit please Giles!
But seriously......how can you be sure the supplier would put the holes in the right place?
No problem Ken, your's at the next meet we both attend.
The holes are easy, I would measure them and tell him :S Well actually I would just draw around my original mats so they know where they should be.
This is one reason I prefer to the put the holes in myself!
I once ordered some mats (from another site!) for my Mitsubishi, the hole (not holes, just one) was nowhere near where any of the 3 holes should of been