You could buy that but that set comes with the aluminium driveshafts which are probably even worse for bending than the MIP's that come with the WCE.
http://www.hbeurope.com/piw.php?partNo=61398&lang=en these are the steel ones which you want, but you will need to buy the axles and rebuild kit separately (might be cheaper to buy the set with aluminium driveshafts?)