Re: Bunk beds
You can ask at the time of buying that if you can make them 2 seprate beds.
You can also buy futon bunk bed. In which you can make sofa out of double bed and bed and its easy to do by single person if you know the technique to make sofa and bed.
You can later put sofa and bed to one girl and buy bed for another or bed to each girl. Easy to assamble.