Jesus was 100% a real person. There is historical evidence (found by atheists) that died on a cross and was gone 3 days later. The question is if u believe if he rose from the dead. If u don't, sorry.
Historians recovered a work named Annals written by a well known Roman senator and he didn't like Christians. Nobody really liked it when a man claimed to be the son of God and rebelled, in the Annals he wrote about Jesus and how he was executed.
http://coldcasechristianity.com/2014/is-there-any-evidence-for-jesus-outside-the-bible/
This is a fairly biased site so I'm not sure how credible it is, if I find a more neutral source (other then wiki) I'll send it to you
While I commend you for your effort, I do think that not only was the site biased like you said, but many of these pieces of evidence just seem too vague.