Kuiper's Views on Adam and Eve Before the Fall

In Pro Regé I, Kuiper gives a very odd and unique account of Adam and Eve before the fall. When I read this, Adam and Eve almost struck me as Tom Bombadil-style characters from Lord of the Rings. So, the idea of an unhindered body here and having original righteousness for Kuiper is really fascinating. And as far as I'm aware, very idiosyncratic.