This is an article by Ven. Dzigar Kontrul Rinpoche in which he talks about the application of the teachings of the Lonchen Nyinghthig to our daily lives. To me, it sounds like he is primarily talking about the Four Thoughts, and what he says seems to be universal to all traditions. He doesn't talk about any of the esoteric, secret aspects of the Longchen Nyingthig.
I found this article very helpful and inspiring.