None are good choices. The succulents require a cool period, the impatiens needs more light than you will provide and almost certainly has been treated with systemic pesticides, because they are very prone to pests and disease and you can't wash systemics away, as they are circulating in the plant cells. The sweet potato vines will need more light than you can provide, but you can try them, as they are harmless, though white potatoes are not, as they are members of the nightshade family.