Ubiquitous...Do you actually want to take him with you ?
I ask as your responses are negative, to advice posted ?
Basically you known your options :-
:Take him with you and keep him confined to a bedroom or shed for several weeks before releasing him back to the garden.
:Find a local neighbour to take over the feeding/caring of this feral cat.
:Put Him To Sleep. If you can't find him a new home and you don't want him anymore, it is not fair to let him suffer if he needs the food you currently supply.
As you sounds like a caring person, I hope you won't resort to option 3, that leaves two options keep him or rehome him.
Good Luck on making a decision.
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