If you are intent on using CV joints (that that that is a bad idea), I would check back with Richard to see which ones he uses. I suspect they are for Renaults but that spline may be more common than that. I'm sure he would know.
When I did mine, I had to get the axles sized for my car and the local drive shaft place didn't work on metric shafts so I had to send the measurement to Richard and he made them up for me! I suppose I could have found someone on this side of the pond - I don't remember why I didn't - but he did do job (or get a good job done)! Anyway, the length is something you'll probably have to deal with.