Fatih,
I would plant the acorn with the tap root breaking out. Maybe someone else can answer your other questions. In the meantime, I will send your questions to a guy I know that owns a nursery and grows all his trees from seeds. Maybe he will provide some useful info for you.
I would keep the seeds in a cool dark place until you decide how to proceed.
Bill D.
Last edited by Bill D.; 12/22/14 12:59 PM.