Thanks for your knowledge guys, I'll check out the parts for sale section first and I would prefer new for the back plates (they seem to be the hardest to find). I'll also check out ACLex, its good to know we have a supplier right here on the forums.
Failing that I'll contact the dealer directly.
I'll update on how I get on as this post will prove useful if it pops up in someone's search results.
Thanks :)