saving archie

Sweet little Archie hasnt been feeling good the past couple days.  He’s been constantly whining and wheezing, he hasnt been eating or drinking the past couple of days..he ate once but then threw it up. Archie has little to no energy and lays in the same spot throughout the day.. Archie has lost a couple pounds and is very skinny..his chest has sunken in and his ribs are starting to show. His breathing is really off and it seems like its hard for him to catch his breath. We are at the Animal Referral Center in Appleton and they placed Archie on oxygen immediately and will be performing xrays. . They want him to stay the night to stay on oxygyn and perform blood work but i dont have the money for all of that.  Please consider helping save my dog.  Im scared he wont make it without the proper care.