Ok, so to end this discussion, thank you to all who replied. It was much appreciated and as usual, I learned a great deal.
I had already looked up eBay which had them for $16 +. That said and given the advice in here to avoid cheap parts which might be poor quality, I called BMG who quoted$ 45 and I presume that was without shipping. I now live in Central Vic but back when I lived in Melb I used to go to the wonderful Voldat Motors with John Johnson. I called John who had such a part in stock and I paid him $45 including express postage costs.
To the guy who quoted me $110 for an eBay part and installation, telling me it would take him an hour to install (charming eh?), I said "Thank you but Volvo told me it takes 5 mins at most so I'll do it myself."
Bless you all and thank you again.