What size container should I use to transplant & what type of soil?
It does best in indirect light indoors if you are keeping it inside. So put it 2 or 3 feet from the window. Plant it in well-draining sandy soil in a container that is about an inch wider than the rootball. This article should help:
https://www.gardeningknowhow.com/ornamental/bulbs/orange-star/growing-orange-star-plants.htm