They're adorable! ... and it's great that you're trying to find them homes and have mom and dad neutered. However, if at all possible, I would wait to take them until they're at least 8-10 weeks old (here it's recommended to wait until 12 weeks), because they're more prone to get sick later in life if they're taken from mom to soon. They usually stick around in the area they were born.

Best of luck, whatever you decide!