Hi Emma,
You will likely not find any reputable breeders with any blueys in stock until the breeding season is over...their "stock" will probably be filling up in late spring/early summer... I would just wait a few months for that to happen if I were you!

It is better to wait to get a healthy and well taken care of bluey.
On the other hand, there are occcasional blueys available on
www.kingsnake.com from various pet "Dealers" (not breeders and they generally don't care to answer any of your questions, let alone in a timely or useful manner). Those people are generally in it for the money and don't care about the animals all that much.
Like I said, I recommend you wait for the "baby season" and get yourself a wonderfully well taken care of animal from good stock!
www.seikereptiles.com
http://community-2.webtv.net/rgurgui/ThunderBayHerp/
www.captivebred.com
Are you sure Ray doesn't have any more blueys in stock? It still shows them on the website...? I would guess it is a pain to keep that up to date, though!
OH, another option...where I found THREE of my blueys (Northerns) is on Craiglist for your area...or a similar "for sale" site...but, again...those can be "questionable" animals in questionable health and from who knows what origins...I got lucky for sure!
What type of Bluey do you have your "eyes set on"?