Excellent post Salzmank, welcome to the bar and keep 'em coming.
I'm not sure whether some of your points were raised here in the past, but I sure find them intriguing.
There are many true Indyologists at the Raven who may be able to confirm.
is probably best qualified: joined eons ago, possesses encyclopedic knowledge of everything Indy-related, as well as great memory for previous posts/discussions.
I'm sure he'll chip in at some point.