This is a useful link of BYC guides to take a look at announcements-feedback-issues-guides.3 (there's a guide on how to include your location under your avatar - including your location is very helpful). You can use this link to contact members in your area - Find your State's thread.
Wow, sounds like you have an amazing little farm!
Are you wanting a fundraiser to help finance the spay/neuters? And then will you put them up for adoption... or keep them? If I come up with any ideas I'll let you know Great job keeping those rescued animals from reproducing. Wish there were more people like you in the world... keep it up!!