Dropping tracking for a bit is fair, as long as your habits stick you’ll be fine. Only other thing I’d push is cardio, not just for fat loss but for long term heart health, especially on gear. Otherwise looks like you’re on the right path.
Smart calls brother. Winny & var should harden you up fine without overcomplicating things. I’d only bring Tren back in if everything’s locked down with food, digestion, sleep. No point risking last minute issues when you’re this close.
You can also hit the rear delts early or add light reverse flies/face pulls before your heavy rows. Diet’s fine for bro just try to keep some for micronutrients.
Track how your knee responds on the machines before jumping back under the bar brother. Once you hit your previous squat numbers without pain... that’s your green light to go back to full intensity.
With the gear.. introducing compounds you haven’t run before close to stage is a gamble my bro. Everyone reacts differently, especially with digestive sides or blood pressure shifts. Don’t push anything you’re unsure about in the final weeks.