here are the lengths of all 3 sets of shafts for anybody thats interested :D
Clio 16v shaft: LH lenght: 602mm ( passanger side )
RH lenght: 700mm ( drivers side )
Williams shaft: LH lenght: 618mm
RH lenght: 717mm
R19 16v shaft: LH lenght: 636mm
RH lenght: 732mm
R19 poverty spec
LH lenght: 638mm
RH lenght: 733mm
these also have a slighty smaller diameter shaft, 86.5mm all the other 3 are 90mm.