Save the cats

My husband and I rescue feral and unwanted cats. We live on 6 and a half acres. Our babies (cats) are allowed to come in and go out as they please. We have cat doors. We spay/neuter at our own expense. We have saved over 60 cats in the last 5 years. Currently we have 19 in our care. 
  Our next project is to build outdoor housing for the feral cats that do not like to come indoors.  Someone suggested a Go Fund me page.  All donations will be greatly appreciated and will go 100% to the cat's care.