The flood and Ancient Chinese Documents

Nothing that would give a direct date - there is the Tel Dan inscription, which at least mentions David (although the real minimalists dispute even that).

Well if the United Monarchy is a fiction from the start, as seems at least possible - even likely - from the archaeological evidence, then the Biblical description of the reigns of David and Solomon are certainly much exaggerated.In my view, by the time the relevant parts of the Bible had written David and Solomon were legendary figures. They were thought of as great for their achievements in their own days, and by the standards of their people and time. But those standards changed - perhaps through the achievements of later rulers, perhaps in comparison with the rulers of Isreal (as distinct from Judah), expecially the Omrides. But that happened slowly enough, that rather than downgrading their opinion of David and Solomon their feats were exaggerated to meet thee new standards. The alliance between the Yahwists and the Davidic line would only have encouraged such a process - there would be an inevitable tendancy to magnify the greatness of David

The genealogies in Genesis don't just list "X is the Son of Y", which your interpretation would apply to. Instead they usually take the from "When Arphaxad had lived 35 years, he became the father of Shelah."So we have an explicit realtionship AND the age of the father at the time of the birth.And perhaps you can explain how a flood in Mesopotamia would be likely to be universal to humanity. I'm not aware of any evidence that humanity was at any time confined solely to Mesopotamia.

Do you have any support for your interpretation of the Hebrew, from Hebrew scholars or is it just what it looks like - a guess based on what you want the text to mean ? It's certainly a bizarre reading.
Leaving out names in a simple list is one thing - but the formula used in Genesis does not lend itself to the idea that any names have been left out (and if they were why not accept the ages as correct ?).And the leading scientific view at this point is that humanity began as a population (NOT a single couple) in Africa. And no there is no reasonable possiblity that this population moved en masse to Mesopotamia, as you assume. If there was a flood that was global to humanity (and there is no evidence of that) it would have to be in Africa.