Medical bills for Rita the pup

I would never do something like this, but as a  college student who only works part time, I just can’t afford to pay out so much money towards a doggie I picked up off the street. This sweet girl is about 5-7 years old, she is not spayed or microchipped. I found her full of flees and covered in mud and dirt. She was obviously someone’s baby because she was not starving and she listens to commands. All she wants to do is cuddle and be next to you.  She has a big gash on her belly that needs stitches so that is about $200 right there because she will have to be put under. I also would like to get her vaccinated so she has a better chance at finding a home. ANY amount of money can help this little baby. I can’t do it all on my own .  Please help! I have shaved her, flee treated her, & cut her nails.