I have found CPL very good. I don't have cats ( keep sight hounds) but called them a few years ago about a very poorly colony of feral cats. They went miles to provide traps, spaying, vaccinations all free of charge to me and I wasn't asked for a donation (though I gave one). Now I see only one or two little cats in the lanes, though I've see a stranger or two in the last few weeks so will keep an eye.
So, Marlin45, it may be better to telephone or visit your local CPL not email. Any animal you take on is going to cost you money, they have to be neutered, vaccinated and tested for FELV, it all costs, vets don't do it for nothing and, unlike the RSPCA all donations are spent on the cats welfare.