Main costume - Nun outfit

As our narrative is based upon a girl that is in a nunnery/convent, due to mise-en-sense she would have to wear a nun's costume. My group and I thought it would be good to create a nun's outfit from scratch but I thought too much time would get into the making of a costume and that would be time consuming. So we went online on Amazon to order a reasonable priced nun outfit which we did eventually find. The costume was cheap and all group members would contribute money towards the outfit. The outfit includes a head peace and a long black gown.