I got ahold of scrapperjr and he said he could make me a set of back plates. Lucked out and found a welder who is currently working on historic first steam locomotives at STEAM TOWN. This guy really knows steam, pressure vessels and metallurgy and is working on high pressure steam engines welding and riveting daily. He works out of Hometown, PA. I recommend him to anyone who wants a good analysis of their unit for repairs. He took a few moments and saw significant steam scoring around the coil plate that cut deep into the supporting back of the furnace that the coil plate bolts on. I do not have the trained eye but he spotted it immediately.