I agree and I agree that very few of us with opinions on this really know enough about these potential nominees to know who is actually an originalist. And unlike Coulter I understand that even if you nominate an originalist, they might drift on you as they have a lifetime appointment and no further appointment they are looking for.
Since I posted what I did about Estrada, I have seen discussions on confirmthem.com that view Estrada as steathy and wondering who much of an originalist he is. As I said as a not expert, my opinions in this area are subject to narrowing of the field by real experts.