Cats Need a Good Home (Lake Alfred)

I have four cats that need to find a good home.
I am very sad to have to do this but with our circumstances changing it is something I have to do.
They are all fixed and utd until February.
They have been inside only cats.
Two have long hair one which is a Maine Coon mix and the two short haired tabby cats are brother and sister.
If someone takes at least two of them they will get a cheaper automatic litter box for $50.
It has an automatic setting but for some reason I can’t get it to work so I just use the manual cycle button.
Who ever takes the last of the cats I can let the litter robot go with them for $200.
I will not sell the litter boxes separately as long as I have the cats for obvious reasons.
I am going to be moving out of state and living in a camper for at least 6 months.
All cats will require a rehoming fee to make sure they can be taken care of.
I will be moving within a couple months so please let me know.
They will also come with food.