Installing a side door on a Hannigan SP 2 sidecar?

I decided to go to a small shop that does vehicle restoration. Between the 2 of us we came up with a design and install that maintained the integrity of the side car structure with metal reinforcement coated with several layers of fiberglass. Works really well. American ingenuity  is not dead.  It is alive and well and living in smaller craft shops with individuals who are willing to try new designs. The door works, fits snug and lets the older dog to continue riding. If you want pics I can post.  Thanks