Eight weeks is a short run. My suggestion would be to go low, slow, and longer. Your ancillaries are fine, but it is the main cycle that needs some work: 500mg Test E for 8 weeks. Here's the problem: the half-life for test e is 4-5 days, and it takes 4-5 half lives to reach saturation, which is 25 days, but even with that dose split into two you still have your body metabolizing and discharging, and slow depot release, which means you would not reach steady-state blood serum levels until weeks 5-6. And so just when you hit stable, you would be halting the cycle. That's a lot of whiplash for your endocrine system, for very little gain. You would probably get sides because that would be a lot of anabolics all at once, and with 20% body fat, you'll be aromatizing a lot of testosterone into estrogen.

Instead, start yourself off at 80 or 100 mg per week. I pin every day and that keeps my levels generally higher on a lower dose (in the 900s when I am pinning 15mg/day) and minimizes peaks and valleys, which is frequently the cause of sides. Run 80-100 for 2-3 weeks and see how you feel. Then titrate up to 120 for another two weeks while your levels stabilize, and then titrate again to 140 etc. When you hit 200-250 or so, hold there for a solid month. At that point, you will have been on test for about 10-12 weeks. Run your bloodwork and see where your estrogen is (get the sensitive assay) and monitor things like hematocrit, lipids etc. If all is well, keep your test between 200-250. You will feel a lot of relief from the low libido and fatigue at that dose. Add in 3-4mg retatrutide per week to get that body fat down closer to the 10-15% range. Check blood work again. At this point, you might be 3-4 months in, but you will have established a baseline on how your body responds to testosterone, and you will likely have found a lower effective dose than just jumping into the 500mg/week cookie-cutter bro protocol.

At that point, if your bloods look good and you're feeling good, but you want to take things higher then take things higher. But you might find that you can reach your goals more effectively, and with more stable and long-lasting results by taking the slow, patient route. Listen to Vigorous Steve. Don't sweat that you might end up with a 6 month "cycle" since most of that will have been spent at a close-to physiological dose. Then if you choose to cycle off for another 4-6 months, implement your PCT, and rerun the entire protocol again after you've had a nice little health phase.