There is a thread on this site somewhere that gives you the OEM part numbers for the both the right and left white number plates.....I'll see if I can find them. It is almost impossible to find them in good condition on flea bay. I had to order mine from the dealer. $90 later they showed up at my door. But I wanted the white ones, not the green ones.
These are the ones I ordered......
36001-1390-266 LH S,White
36001-1419-266 RH S,White