My wife and I are also considering this train trip from Nice to Cuneo. While I can't give you the cost of the journey, I can let you know the web site which tells you all about this trip, as well as containing a weekly schedule. http://www.beyond.fr/ Once you are at this site, click on travel, rail, Nice-Cuneo and again on Nice-Cuneo. I found this site to be most helpful as it has great descriptions and photos of towns and villages as well as heaps of other information. I hope this helps. Have a wonderful trip.

Regards Richard. Christchurch. New Zealand.