Just hang on till they are all well. Yes they will grow a lot in the next few weeks but as chickens without a non they have a lot to learn and will learn faster together. Once they are all healthy start looking for homes. If you have someone interested or wanting then already just let then know you want to make sure they are in good health before the move. You'll be ok. I started with 1 and now have 11. It's more then I'm supposed to have and I'm still considering rehoming at least 2 but I like the dynamics of the larger group. Can't wait to get my ranch and have a large flock...