Help the Black Cat Brigade

I feed a colony of cats near my work. For ages, its been 3 cats (Big O (orange), Melvin (Black), Little B (Black).)

A few years ago, I neutered them all, as well as any other random cat that stepped into my trap. I neutered 9 in all, had Melvin's Eye removed, and had Little B's injuries taken care of. I don't even know where all of the other cats came from.

Last week, another black cat joined my crew. S/he has been a regular ever since. Then, a Grey and White cat, presumably from a nearby colony that I know of, joined and comes by about 75% of the time. Today, there was a new black cat.

I need to get these 3 new cats, plus probably the rest of the nearby colony (3 more cats) Neutered and spayed. Plus, I caught another black cat close to my house that has been living on my friend's deck, about 6 months ago. She has agreed to socialize the cat once I TNR and snap test her.

That's 7 cats; potentially. I'd like to get started with Porch Kitty, the two black kitties, and the grey and white kitty, and move on to the other colony after that.

Any extra money will help subsidize my cat food expenses. With 3 new cats, I'm looking at about $60/month. I'm not asking for people to pay for me to do this, but some help would be helpful. It takes a village!