I’m not sure why you brought up Ramesses II as if this is some kind of conclusive evidence; he was in the 19th dynasty, while KV-40 is from the 18th dynasty, and furthermore, speaking of radiocarbon dating, his guts, from his canopic jars, turned out to be almost 800 years “too young”. Naturally an egregiously ad hoc (and phony) explanation had to be concocted:
http://www.freerepublic.com/focus/news/1774343/posts
oh ic
i am too stupoid to understand this but i can read hierolyphs— lemme chk this out on the papayri and the Turin codex et alii