I think that there is enough room for them to fit but I'm not sure how much modification would be required to mount them.
I don't think that they're real leather but I don't know for sure.
Below is a picture with the dimensions of the rails that are on the seat now.
The dimensions of the bolt holes that are used to mount the current rails to the seat (in case you would like to see if the 350Z rails would be easy to fit onto this seat) are 13.25" across and 11.5" from top to bottom.
