Try contacting the Animal Compassion Team in Fresno. Their phone number is 559-299-6364. You can also go to www.petfinder.com, put in your zip code, and it will list not only thousands of dogs in your area who are looking for homes, but it will give you links to any of the rescues in your area who may be able to help you out with temporary fostering for your boy until you can find a house to live in. Just look through all of the many pages of adoptable dogs in your area and each dog will have a link to the rescue he's at. You might have to look through a lot of pages because yours seems to be a pretty large area with regard to rescues, but that's good because it will give you more possibilities. You might not have as hard a time as you might think since you are willing to pay for his upkeep while he is there. I hope you are able to find someone to help you out. I can't imagine how it would be to be in your shoes. You are in my thoughts.
Ghilly
I am in the valley. You are south of me.
Nit sure if this is correct but try contacting the SPCA at 559-233-0116
Valley Animal Center at 559-233-8690
Sake of Dogs at 558-275-3769
If they can't help you they may direct you to someone who can.
Do a Google search for Dog Rescues in Fresno, Ca.
Good luck!
Where do you live? You don't have to tell me exactly, in fact I would prefer you didn't post that on a public board. But if you will give me your general area I will see what I can find with regard to places that might have a foster home KNOWING that it is only until you find a house to live in, and especially since you are offering to pay for his food and basic upkeep until you take him back.
Ghilly