Your advice is extremely dangerous. I'm listening to doctors like Dan Peterson, Susan Levine, David Kaufman, Nancy Klimas, etc. who prescribe antivirals for patients whose labs indicate a viral component to their illness. They are not commonly prescribing cyclophosphamide. There is also the experience of Martin Lerner.
Robert Naviaux is a very dedicated researcher, but he is not a clinician. I have had 2 in-depth discussions with him about my specific labs, diagnoses, and treatments, and he was very encouraging about the approach my doctors and I were taking.
We are all individuals with individual genetics and environmental factors contributing to out illnesses and there is no blanket, one size fits all, treatment. Personalized medicine, taking these various factors into account is more prudent than a copycat approach. I would be very hesitant to believe as any random, double blind placebo study purporting to cure as anyone with ME/CFS, because, due to the many lavs I've seen and discussions with many, many patients, it is very clear that, at best, we are different subsets of some umbrella problem.