Does marrying an orphaned cousin (daughter of a maternal aunt) combine the rewards of kinship, charity, and sponsoring an orphan?

A person is rewarded for their intention and determination. If you marry an orphan with a kinship tie, intending to provide for her chastity, care for her, and show her kindness, we hope you will receive the reward for all of that, as the Prophet, peace and blessings be upon him, said: "Indeed, actions are by intentions, and indeed, every person will have what he intended."