Mr. Wiggles Needs Surgery

I rescued 2 dogs from a giant rescue that happened in stockton about 4 years ago. There were about 40 tiny puppies across from the library when we happened to be walking by. My daughter was in 4th grade, and wanted to pet them. The rescue people were begging people to foster them, so large was this batch of wiggly puppy goodness. We took 2 in, me not so sure I could afford them. They both have birth defects in their hind legs, common to inbreeding. I was able to afford the surgery on the first dog because I was making more in a job I got laid off from. I decided to become a public school teacher and now I'm making much less. My male dog, Mr. Wiggles, can't walk anymore because he needs surgery on both his knees. If he was older (he's 4) I wouldn't do this, but it's hard to watch a wee doggie in the prime of his life not be able to walk anymore.It's not my style to ask for help, but I feel so bad for this little dude.