What is the cost of vaccinating and neutering a cat?

a cat has given birth to kittens in my house. I'm not really a pet loving person, but neither cruel enough to throw them away. But I'm a student and not earning much, so dont know how to do things right. as of now I have arranged dry cat foods, which they seem to love. Vaccination is next. and I heard that neutering is must otherwise they will double up. Which I cannot afford even in next 1 year.

Can anybody suggest me vets for these? ATP I can afford their food easily. The dry food is dirt cheap. The only cost that I don't know about is vaccines and neutering in future. I also dont know how many vaccines a cat needs. rabies vaccine is legal that I know.