I am so sorry to hear about Cash. I just lost my Cody too, so unfortuantely I know exactly how you feel. we are also getting a rescue - our app should be approved this week so maybe a week from today, there will be the tick,tick, tick of toenails that need to be dremeled.
I am going thru a rescue down here in the DC area. But I am sure if you checked out the Canadian Dobe club they would be able to direct you.
good luck and god bless