does the damper run a v-belt or a flat ribbed belt. If its the v-belt one good luck in finding one even from the dealer (think they're about 270 quid plus vat anyway)
Been looking for one for about 2 months and finally given in. I've had to source the alternator and bracket/tensioner, water pump pulley and damper to convert it to run a flat belt. The flat belt damper is about 55 quid from euro car parts.