Next I inserted the bolts, washers and nuts and now its mobile!
Before I attach the panels to the frame, I decided to use the extra mylar and cover all exposed wood. I am sure you can get by without it but I chose to go the distance. That and I have a slight case of OCD too. Remember, just two of the four sides need to be completely covered since the panels will cover and secure the edges.
So far this is where I am at. I will keep posting the rest of the progress of this box as it comes along. I am hoping within the next few days to have it done. But please, If anyone has any comments, suggestions, or opinions, I would love to hear them.