K, thanks. I just emailed a local clinic and they replied back with a pricing.

The price for spay (ovariohysterectomy) is $88.00. This includes preanesthesia examination, anesthesia for surgery, the surgery itself and an overnight hospitalization. There is also an injection for peri-operative pain management which is $9.00. Lastly, we offer and recommend blood tests prior to anesthesia if you are interested, but this is not required in young cats.Thank you. Please call if you have any questions.

I think that's not that bad actually, one of the cheaper vets.