
From there I started at one spot on the layout and started wrapping the Masonite around until it completed my circle. I fastened it with drywall screws that I counter-sunk with a special bit designed for with my drill.
This is a shot of my old backdrop that I used on my diorama. I wanted to save as much material that I could from that project and use on this layout but it the end it was far better just to replace this panel with a new one. 
As you can tell, I did use on little strip of my old backdrop from the diorama which I will repaint over with the new background.
The 1"x2"x24" risers are not the best form of support for this backdrop and I probably would have done it more a structurally sound way to support a upper level of 1x's for lighting and an upper fascia. I didn't feel that I wanted to do that with this layout because I knew that moving was in the near future, and I wanted to make this as light as possible. But, none the less, the risers do work and they do support the Masonite well enough that I don't see any waviness that will be an eyesore.
Well, now it is on to the foam sub-base that will be used for scenery.
For now we just ran the runs of Romex for both power districts and we will worry about the rest of the electrical once we have track down and feeder holes drilled.

Next it will be onto the backdrop, electrical, and foam board lamination.