Best place to source standard 200 Cup front spring

Hi, I have a broken front spring (NSF on a 59 plate car) and want to just replace this if possible. I have seen various specialists selling lowering kits, but I just want a standard replacement Cup spring - any specialists sell these, or is main dealer the only option, Thanks.
 
Buy a full set second hand off here. New from Renault is crazy money for just one spring. A second hand set will be much cheaper than getting one spring from Renault
 
Keep an eye out for them popping up for sale or stalk build threads when people upgrade ask them if they will sell the originals. I knew someone who had upgraded to coilovers and I needed a front spring as one of mine had snapped, picked up all 4 for about £40