Sorry patsmb just saw your message. I have a small Skye Terrier (the runt of the litter) so I took her to Animal travel in western Sydney and they were very friendly, real doggy/cat people, very open and answered all my questions without making me feel like a fussy owner (which I am). She quoted me $3300 pickup west Sydney to Glasgow airport, that included supply of crate.
i felt they were running a genuine, efficient, caring animal transport business, rather than just running a business transporting whatever would make them money (if that makes sense). Their phone number is 02 4572 7736 they're in Luddenham.
I got a quote from Jetpets, and it was a bit more $ but for me it's not about the $. If you are on Facebook, animal travel have a page there, or check their website http://www.animaltravel.com.au. Hope this helps.