All of my sxits from baggage claim in T1 have been all the way to the left (as you face the roadway outside) for over a year now. I would plan to meet there, but pick an outside exit door-say door 28-to meet a bit later as a fallback.

I would also consider going to CDG on one of the Air France buses-available for about 20E round trip to anyone-rather than the RER. They will take you right to the door or T1 with no transfer at CDG needed.