The Question and Answer section for The Ramayana is a great resource to ask questions, find answers, and discuss the novel.
I'm sorry, what novel does your question pertain to?
I think Rama was an avatar of lord Vishnu.
I've been looking for Vishwamitra's sub-caste to no avail. You are correct that he was born into the Kshatriya (ruling class); he later attained the brahma rishis, which is the highest form of rishis.
I will continue to look for the...