HELP! I'm freaking out!

I haven't posted here in a while. My beloved dacshund, Gomez, passed away February 1st and Rascal continues to get bigger and more trained.
So, while I was bored and online surfing yesterday, I notice a posting by a local rescue group saying they need to find a foster home for a red and white siberian husky that is in a local shelter and her time is running out. I call to see about her and they don't really have any information so I have to call the shelter in the morning. My husband has already decided that if she is friendly and can be around other dogs and kids we should just adopt her. I was fine yesterday, but thinking about the vet bills, daycare bills, logistics of having two big dogs, etc. I am freaking out.

Is there anyone out there that has two big dogs that has any advice for me?