Download backbone of YOLOv1

I have built a YOLO version 1 model, following the research paper. In the middle of building the model, I had googled a lot of materials and found that most people don’t follow the exact original model (convolution layers). Instead, they would rather use ResNet or VGG. I thought it might be about the accuracy. However, I could not find any original YOLOv1 backbone, even on GitHub or the official website written on the research paper (I hope I didn’t overlook it).

My question is, does anyone know where I can download the weights of the original backbone?

And the follow-up question is how to load them into the model if I build the model by pytorch? Simply use model.load_state_dict(torch.load('.pth file'))?