You'll be lucky if you can find any of these officially. I take it you mean the Rivage writing at the bottom of the back side panel ? If you have a rivage and the old stickers are still on then what you can do is get a car graphics place to trace over the outline of the writing and then they can make them up for you.
I got some through the place that I bought my car from but I don't know who they used, you could always try ringing them and ask to be put in touch with whoever did mine, I'm sure they'll remember. It was over a year ago now but might be worth a try. The car firm (if they are still in business) are called The Golf Club and they are in Bradford/Shipley West Yorks and the number is 01274 599998, ask for Tony. You never know, they may still have a copy of the ones they did for me, I do have a spare set but can't sell them just in case mine start to peel off, sorry.