Ikea wardrobe dismantle/reassemble

I bought a used, but in excellent condition, ikea wardrobe. It is assembled but unfortunately it won’t fit through the bedroom doorway due to the hallway configuration. My son and I thought we would be able to dismantle and reassemble in the room but it’s too tricky for us and we don’t have the right tools. Can you help with this issue at all? Cheers Lisa