Renault Laguna, bonnet catches, replacement pulleys.?

Help i have 1996 Renault Laguna, and i have had to pop the bonnet from underneath as the plastic/nylon pulleys have worn, i have replaced them with a better pair but these are on the way out and i have turned them around so the cable end will not slide out (hopefully!) but i need to know where i can get hold of these seperately, Renault main dealers do not sell seperatley and want £35 + vat each for two new catches.