Taking in a kitten born feral is not as difficult to "tame" as you think they may be. All but three of my current cats were born feral and tamed by me into pets over a one and one-half month period when I got them. I used the method I told you about, locking the weaned kittens into a spare bedroom and slowly taming them by feeding them and spending between one and two hours per day with them. I sat on the bed, reading and "ignoring" the curious kittens as they came out from under the bed and ate their food. After eating, the kittens would then check me out from the floor, later from the end of the bed. I would slowly go from ignoring them completely, to talking to them, then playing with a string with a toy tied on the end, then offering treats from the hand and eventually they would come to me one by one until at the end of between thirty and forty days, I would end up with a lap full of sleeping former feral kittens who I could pet at will and who knew their names and what the sound of an opening pack of cat treats sounded like. Still use that sound to call all the cats together to this day; much easier than looking for everyone individually!
If your friend with the ferals would allow it, you could interview the kittens right now as they grow.