The very knowledgable ones about this account in the Bible will probably not entertain your question. And although I am not one of those people, I know the Bible goes into detail about the dimensions of Noah's Ark. It is what it is, and is not for everyone to believe.
Many good meaning people have gone back to original languages of the Bible with the intent to find it's original texts. And there are many modern day findings that back up accounts in the Bible.
I can assure you, I am just a normal person who likes to read, sometimes the Bible. Can I prove to you that the Bible is what it says it is? Can anyone enlighten you as to have a change of heart about God? You have already given the answer to those questions.
Is it irritating that so many people ask religious questions? I have to agree with you on that one. Will people stop asking those questions? Probably not.
Will you convert them to stop believing in God? Probably not again.
Have I rambled on long enough with this response? I do respect your tenacity. Power to you.