Thanks for the positive feedback. I see that you are correct about the collision oversight. I will fix and reupload soon. In the meantime, you can create a simple, non-renderable box in Giants Editor and set the collisions appropriately.
Yes, I collided all the posts by creating a primitive cylinder inside the GE itself, giving it the correct collision attributes. And thanks for making the prefab available, it’s wonderful!
It took a while, but as promised the video has been made and the credits and links are in the description. Sorry for the delay, but my time is very busy. But thanks buddy!