The first path is persuasive, because it attends upon alethea, Heidegger's favorite word. Coxon translates it as "reality." If there is a fault with Coxon's excellent translation, it is that he has a tendency to too easily gloss ancient words into modern concepts. Heidegger's attempts to "think the Greek in the Greek way" may go to torturous extremes, but it would reassuring to see Coxon wrestle a bit more with the ancient terms. The Greek philosophers were at the beginning, struggling to find a language for their new concepts. To translate them into modern philosophical concepts ignores the struggle and loses some of the dynamism of their attempts.
Alethea, truth, is the unconcealed, the remembered, that which has opened itself to presence. As such, it cannot possibly be nothing. Only something can be, and to be it must be something.
That said, though, a few words about nothing. We cannot, in fact, imagine nothingness. Nothingness has no properties. Imagine a cave with no light. There is a stalagtite dripping into a black pool. Ripples run from the drop to the edges of the pool. Despite the lack of light, you image the shape of the stalagmite, the black pearl of a drop. The ripples have a slight gleam on the crest. Try harder. Even if you concentrate very hard, you will still be left with your own mind hovering over the darkness, like God over the waters. Even the empty space of the physist is not empty. It is a sea of overlapping waves of energy generating a random foam of particles and anti particles that bust into being and then are annihilated.
Yet nothingness haunts us. The idea of not existing is the source of our deepest anxieties. We cannot truly imagine a world without us. Even when we try we imagine ourselves observing a world without us.
The goddess in Parmenides' poem is correct, that pursuing nothingness will give you nothing in return. Yet, I think, as the Buddhists have long known, there are spiritual aspects and benefits in meditating on nothingness, even if it is not something we can ever fully grasp.