Stonewood SSD7 - SSD on the fly challenge

In this series I attempt to solo all SSDs with no building until I activate the defense. I am allowed to keep whatever I build during the defense for the next defenses. I'm also allowed to replace low durability traps between defenses. Just no adding of new structures or traps before I start a defense. SSD on the fly challenge: Stonewood SSD2: https://youtu.be/ED0L6WKcbn8 Stonewood SSD3: https://youtu.be/AUNMlTADeqA Stonewood SSD4: https://youtu.be/F8A6L-6Wq_s Stonewood SSD5: https://youtu.be/ceAYOQjUerI Stonewood SSD6: https://youtu.be/OhpkDv5Z69E Plankerton SSD1: https://youtu.be/jsJ03dsc7Mg Plankerton SSD2: https://youtu.be/VgjhHpURSdI Trap tunnel tutorial: https://youtu.be/b9dieJRIDbM