JoelR There aren't a lot of wreckers who take Volvos into their yards, and the number of 360s sold over here wasn't huge. If no one has come forward by this point, your best bet might be to try contacting VolDat in Melbourne VIC.
http://www.voldat.com.au/
Your other alternatives would be to try one of the 360 forums based in the UK and Netherlands.
If you want a new one, you could try GCP in Sweden if you have the part number.