You can get as elaborate or as simple as you want as long as the basic needs are met. Tubs are super easy to start up and maintain. Anything in the tank genre can be easy or difficult depending on the temperatures and humidity outside the enclosure. There are people here that successfully maintain tanks, but i recommend starting with a tub until the snake is sorted out, eating and shedding fairly regularly. My setups are very, very simple and cheap. Homemade racks, Hefty brand tubs, bowls from the dollar store, plastic containers destined for the garbage for hides, and paper substrate. Not pretty but functional and the snakes don't seem to care.

Glad your animal has found a better home.