There are no published accounts from any founders that support that view. All such public accounts were speculation from people WHO WERE NOT THERE.
Again, Look up the word "Provenance." You don't have any.
And a published account from someone you contend was there stating that the Declaration and Constitution were predicated on Vattel's theories and not by way of Blackstone or other English sources is where?
Looks up "assertion without evidence." You've got lots of that.