I would do the Anavar at 50mgs a day. i've done that before. You can actually push it to 8 weeks if you want. Make sure you're eating solid no junk food and no fast food.
Better make sure you're using N2guard with it. N2guard is great for oral steroids and also injectable steroids. It will help keep your organs safe and your liver in good shape.
SR 909 is not that complicated to use. A lot of people choose to microdose it throughout the day since it has a short half life, so you can do 5 or 10 mg.
I think Pyramiding has some purposes, but overall I think people don't really know what they're doing. You should not be pyramiding steroids. You should just keep them consistent.