Just seeing this thread... wish I could help but due to back problems I am useless for at least another week... will search for forever homes and will try to make a donation to help cover expenses.... and sending prayers...
Note: Revolution is the treatment for Sarcoptic mange
Note: I could foster one or two after a vet check and a 30 day quarantine
(sounds weird, but I almost lost one of mine to pneumonia for lack of a quaratine period)
Also call
Welcome to Save A Yorkie Rescue, Inc. they may be able to help.